E02846B45

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

CXA3627ER

32 pin VQFN (Plastic)

Description

The CXA3627ER is a monolithic TV tuner IC which

integrates local oscillator and mixer circuits for VHF

band, local oscillator and mixer circuits for UHF

band, an IF amplifier and a tuning PLL onto a single

chip, enabling further miniaturization of the tuner by

adopting a small package.

Features

· Low power consumption (5V, 63mA typ.)

· Low noise figure, low distortion characteristics

· High gain/low gain selectable

· Supports IF double-tuned/adjacent channel trap

· Balanced oscillator circuits with excellent oscillation

stability

· On-chip PLL supports I

C bus

· On-chip high voltage drive transistor for charge

pump

· Frequency step selectable from 31.25, 50 or

62.5kHz (when using a 4MHz crystal)

· Low-phase noise synthesizer

· On-chip 4-output band switch (output voltage: 5V,

current capacity: 13mA)

· 32-pin VQFN small package

· UHF band switch output switchable

Applications

· TV tuners

· VCR tuners

· CATV tuners

Structure

Bipolar silicon monolithic IC

All Band Tuner IC with On-chip PLL

Absolute Maximum Ratings

· Supply voltage

0.3 to +5.5

· Operating temperature

Topr

25 to +75

°C

· Storage temperature

Tstg

55 to +150

°C

· Allowable power dissipation

610

Operating Conditions

Supply voltage

4.75 to 5.30

Note: This IC has pins whose electrostatic discharge strength is weak as the operating frequency is high

and the high-frequency process is used for this IC. Take care of handling the IC.

CXA3627ER

Block Diagram and Pin Configuration

IF AMP

C Bus

Interface

Shift
Register

Divider
1/128, 160, 256

Charge
Pump

REF
OSC

Phase
Detector

Band SW
Driver

Programmable
Divider
14/15 bit

Prescaler
1/2

BS2

BS1

SDA

SCL

IFOUT

ADSW

BS3

REFOSC

CPO

GND2

UOSCB2

UOSCE2

UOSCE1

UOSCB1

VOSCB2

VOSCC2

VOSCC1

VOSCB1

UHFIN2

UHFIN1

BS4

BYP

VHFIN

GND1

MIXOUT2

MIXOUT1

IFIN2

IFIN1

VHF
MIX

UHF
MIX

VHFOSC

UHFOSC

CXA3627ER

No.

Symbol

Pin voltage

[V]

Equivalent circuit

Description

1.6k

15p

100

10k

IFIN1

IFIN2

2.0

IF inputs.
These pins must be connected
to the mixer outputs via
coupling capacitance.

MIXOUT1

MIXOUT2

Mixer outputs.
These pins output the signal in
open collector format, and they
must be connected to the
power supply via a load.

Power supply.

VHFIN

GND1

2.4 during
VHF reception
0.0 during
UHF reception

BYP

3.8

(when open)

Analog circuit GND.

VHF input.
The input format is unbalanced
input.

VHF input GND and selection
of band switching.
GND: BS4 UHF
Open: BS3 UHF

Pin Description

CXA3627ER

No.

Symbol

Pin voltage

[V]

Equivalent circuit

Description

100k

BS4

High: 4.9
Low: 0.0

BS3

BS1

BS2

Band switch outputs.
This pin corresponding to the
selected band goes High.

UHFIN1

UHFIN2

0.0 during
VHF reception
2.3 during
UHF reception

UHF inputs.
Input a balanced signal to
Pins 14 and 15, or ground
either of Pin 14 or 15 with a
capacitor and input the signal
to the other pin.

VOSCB1

2.3 during
VHF reception
2.5 during
UHF reception

VOSCC1

4.0 during
VHF reception
V

during

UHF reception

VOSCC2

4.0 during
VHF reception
V

during

UHF reception

VOSCB2

2.3 during
VHF reception
2.5 during
UHF reception

External resonance circuit
connection for VHF oscillator.

CXA3627ER

25p

38p

30k

100

GND2

PLL circuit GND.

Varicap drive voltage output.
This pin outputs the signal in
open collector format, and it
must be connected to the
tuning power supply via a load.

CPO

2.0

Charge pump output.
Connects the loop filter.

REFOSC

4.4

Crystal connection for
reference oscillator.

150k

50k

ADSW

1.25

(when open)

Address selection.
Controls address bits 1 and 2.

No.

Symbol

Pin voltage

[V]

Equivalent circuit

Description

UOSCB1

2.4 during
VHF reception
2.2 during
UHF reception

UOSCE1

2.0 during
VHF reception
1.5 during
UHF reception

UOSCE2

2.0 during
VHF reception
1.5 during
UHF reception

UOSCB2

2.4 during
VHF reception
2.2 during
UHF reception

External resonance circuit
connection for UHF oscillator.

CXA3627ER

Electrical Characteristics (See the Electrical Characteristics Measurement Circuit.)

(Vcc = 5V, IFV

= 5V, Ta = 25°C)

Circuit Current

Item

Symbol

Iccv

Iccu

Measurement conditions

current

Band switch output open during VHF operation

current

Band switch output open during UHF operation

Min.

Typ.

Max.

Unit

OSC/MIX/IF Amplifier Block

Item

Symbol

CG1

CG2

CG3

CG4

CG5

CG6

CG7

CG8

NF1

NF2

NF3

NF4

NF5

NF6

NF7

NF8

CM1

CM2

CM3

CM4

CM5

CM6

CM7

CM8

Pomax

Measurement conditions

VHF operation f

= 55MHz

High gain mode

VHF operation f

= 360MHz High gain mode

UHF operation f

= 360MHz High gain mode

UHF operation f

= 800MHz High gain mode

VHF operation f

= 55MHz

Low gain mode

VHF operation f

= 360MHz Low gain mode

UHF operation f

= 360MHz Low gain mode

UHF operation f

= 800MHz Low gain mode

VHF operation f

= 55MHz

High gain mode

VHF operation f

= 360MHz High gain mode

UHF operation f

= 360MHz High gain mode

UHF operation f

= 800MHz High gain mode

VHF operation f

= 55MHz

Low gain mode

VHF operation f

= 360MHz Low gain mode

UHF operation f

= 360MHz Low gain mode

UHF operation f

= 800MHz Low gain mode

VHF operation f

= 55MHz

= ±12MHz (30% AM)

High gain mode

VHF operation f

= 360MHz

= ±12MHz (30% AM)

High gain mode

UHF operation f

= 360MHz

= ±12MHz (30% AM)

High gain mode

UHF operation f

= 800MHz

= ±12MHz (30% AM)

High gain mode

VHF operation f

= 55MHz

= ±12MHz (30% AM)

Low gain mode

VHF operation f

= 360MHz

= ±12MHz (30% AM)

Low gain mode

UHF operation f

= 360MHz

= ±12MHz (30% AM)

Low gain mode

UHF operation f

= 800MHz

= ±12MHz (30% AM)

Low gain mode

load, saturation output

Min.

Typ.

22.0

22.5

26.0

20.0

20.5

24.0

103

101

104

102

Max.

Unit

dBµ

dBm

25.0

25.5

29.0

23.0

23.5

27.0

19.0

19.5

23.0

17.0

17.5

21.0

100

Circuit current

Conversion gain

Noise figure

1% cross
modulation 1

Maximum output

power

CXA3627ER

Item

Symbol

fsw1

fsw2

fsw3

fsw4

fst1

fst2

fst3

fst4

C/N1

C/N2

Measurement conditions

VHF operation

OSC

= 100MHz

f from 3s to 3min after switch ON

VHF operation

OSC

= 405MHz

f from 3s to 3min after switch ON

UHF operation

OSC

= 405MHz

f from 3s to 3min after switch ON

UHF operation

OSC

= 845MHz

f from 3s to 3min after switch ON

VHF operation

OSC

= 100MHz

f when V

5V changes ±5%

VHF operation

OSC

= 405MHz

f when V

5V changes ±5%

UHF operation

OSC

= 405MHz

f when V

5V changes ±5%

UHF operation

OSC

= 845MHz

f when V

5V changes ±5%

VHF operation

10kHz offset CP = 1

Phase comparison frequency = 31.25kHz

UHF operation

10kHz offset CP = 1

Phase comparison frequency = 31.25kHz

Min.

Typ.

Max.

Unit

kHz

dBc/Hz

±200

±650

±350

±400

±100

±350

±100

Value measured with untuned input.

NF meter direct-reading value (DSB measurement).

Value with a desired reception signal input level of 30dBm, an interference signal of 100kHz/30% AM,

and an interference signal level where S/I = 46dB measured with a spectrum analyzer.

Value when the PLL is not operating.

Switch ON drift
(PLL not
operating)

Supply voltage drift
(PLL not
operating)

Oscillator phase
noise

CXA3627ER

PLL Block

Item

Lock-up time

Reference leak

CL and DA inputs

"H" level input voltage

"L" level input voltage

"H" level input current

"L" level input current

AD input

"H" level input voltage

"L" level input voltage

"H" level input current

"L" level input current

SDA output

"H" output leak current

"L" output voltage

CPO (charge pump)

Output current 1

Leak current 1

Output current 2

Leak current 2

VT (VC voltage output)

Maximum output voltage

Minimum output voltage

REFOSC

Oscillation frequency range

Input capacitance

Negative resistance

Band SW

Output current

Saturation voltage

Leak current

Symbol

LUT1

LUT2

REFL

SDALK

SDAL

CPO1

LeakCP1

CPO2

LeakCP2

XTOSC

NEG

SAT

LeakBS

Measurement conditions

VHF operation

CP = 1

OSC

100MHz

OSC

405MHz

UHF operation

CP = 1

OSC

405MHz

OSC

845MHz

Phase comparison frequency
= 31.25kHz

CP = 1

= Vcc

= GND

= Vcc

= GND

= 5.5V

Sink = 3mA

When CP = 0 is selected

When CP = 1 is selected

Sink current = 1mA

Crystal source impedance
f

REF

= 4MHz

When ON

When ON Source current =
13mA

When OFF IFV

= 5.5V

Min.

Typ.

0.2

100

±50

±200

0.15

250

0.5

Max.

Unit

dBc

µA

MHz

µA

Vcc

1.5

0.1

Vcc

200

100

0.4

±80

±320

100

0.8

330

GND

±30

±120

CXA3627ER

Electrical Characteristics Measurement Circuit

BS3

ADSW

IFOUT

SCL

SDA

BS1

BS2

VOSC

VOSCC2

VOSCC1

VOSCB1

UHFIN2

UHFIN1

BS4

IFIN1

IFIN2

MIXOUT1

MIXOUT2

GND1

VHFIN

BYP

REFOSC

CPO

GND2

UOSCB2

UOSCE2

UOSCE1

UOSC

360

100p

XTAL
4MHz

ADSW

IF OUT

SCL

SDA

360

BS2

BS1

4.5T 4.5T

56p

4.7µ

+5V

VHF IN

56p

150p

100

UHF IN

4700p

0.056µ

10k

240

22k

+30V

10k

220n

56p

10k

0.5p

BS1

4.7k

100p

4.7k

1T363

1T362

0.5p

15p

4.7k

3.0

5.5T

2.5

2.5T

BS2

2.5

2.5T

1T363

10k

56p

2.2n

360

CXA3627ER

Application Circuit

BS3

ADSW

IFOUT

SCL

SDA

BS1

BS2

VOSC

VOSCC2

VOSCC1

VOSCB1

UHFIN2

UHFIN1

BS4

IFIN1

IFIN2

MIXOUT1

MIXOUT2

GND1

VHFIN

BYP

REFOSC

CPO

GND2

UOSCB2

UOSCE2

UOSCE1

UOSC

100p

XTAL
4MHz

ADSW

IF OUT

SCL

SDA

200

10p

1.2µH

200

BS2

BVH

FMT

BVL

BS1

47p

4.5T 4.5T

56p

4.7µ

+5V

VHF IN

56p

33p

3.8

14.5T

100

UHF IN

4700p

0.056µ

10k

240

+30V

22k

10k

220n

100p

10k

0.5p

BS1

4.7k

100p

4.7k

1T363

1T362

0.5p

15p

4.7k

3.0

5.5T

2.5

2.5T

BS2

2.5

2.5T

1T369

100p

12p

22p

2.2n

150p

3.2

7.5T

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.

CXA3627ER

Description of Functions

The CXA3627ER is the terrestrial TV broadcasting tuner IC which converts frequencies to IF in order to tune

and detect only the desired reception frequency of VHF and UHF band signals.

In addition to the mixer, local oscillation and IF amplifier circuits required for frequency conversion to IF, this IC

also integrates a PLL circuit for local oscillation frequency control onto a single chip.

The functions of the various circuits are described below.

1. Mixer circuit

This circuit outputs the frequency difference between the signal input to VHFIN or UHFIN and the local

oscillation signal.

2. Local oscillation circuit

A VCO is formed by externally connecting an LC resonance circuit composed of a varicap diode and inductance.

3. IF amplifier circuit

This circuit amplifies the mixer IF output, and consists of an amplifier stage and low impedance output stage.

4. PLL circuit

This PLL circuit fixes the local oscillation frequency to the desired frequency. It consists of a programmable

divider, reference divider, phase comparator, charge pump and reference oscillator. The control format

supports the I

C bus format.

The frequency steps of 31.25, 50 or 62.5kHz can be selected by the I

C bus data-based reference divider

frequency division setting value.

5. Band switch circuit

The CXA3627ER has four sets of built-in PNP transistors for switching between the VL, VH and UHF bands

and for switching the FM trap, etc. These PNP transistors can be controlled by the bus data.

The emitters for these PNP transistors are connected to the power supply pin (V

), and are ON and output

5V when the bus data is "1 (H)".

Two types of relations of the bus data and the IC internal OSC/MIX circuits operation are available as shown

below. These relations can be selected by grounding or leaving open Pin 8 (BYP).

BYP: Grounding

: Don't care O: Operating X: Not operating

Band SW data

BS1

MIX circuit

OSC circuit

BS2

BS3

BS4

VHF

UHF

VHF

UHF

BYP: Open

Band SW data

BS1

MIX circuit

OSC circuit

BS2

BS3

BS4

VHF

UHF

VHF

UHF

CXA3627ER

Description of Analog Block Operation (See the Electrical Characteristics Measurement Circuit.)

VHF oscillator circuit

· This is the differential amplifier-type oscillator circuit. Pins 13 and 16 are base and Pins 14 and 15 are

collector. Pins 13, 15 and Pins 16, 14 have the in-phase input/output relation respectively.

This circuit is oscillated with the positive feedback applied by connecting the output to the input via the

coupling capacitor and the feedback capacitor.

Oscillation frequency is varied by connecting an LC parallel resonance circuit including a varicap and controlling

the voltage applied to the varicap.

VHF mixer circuit

· The mixer circuit employs a double balanced mixer with little local oscillation signal leakage.

The input format is base input type, with Pin 8 grounded either directly or via a capacitor and the RF signal

input to Pin 7.

(Pin 8 can also be used to select VHF/UHF switching mode with the BS3/BS4 data.)

· The RF signal is fed from the oscillator, converted to IF frequency and output from Pins 4 and 5. Pins 4 and

5 are open collectors, so external power feed is necessary. Also, connect single-tuned filters to Pins 4 and 5.

UHF oscillator circuit

· The oscillator circuit is designed so that two collector ground type Colpitts oscillators perform differential

oscillation operation via an LC resonance circuit including a varicap.

· Resonance capacitance is connected between Pins 17 and 18, Pins 18 and 19, and Pins 19 and 20, and an

LC resonance circuit including a varicap is connected between Pins 17 and 20.

UHF mixer circuit

· This circuit employs a double balanced mixer like the VHF mixer circuit.

The input format is base input type, with Pins 10 and 11 as the RF input pins. The input method can be

selected from balanced input consisting of differential input to Pins 10 and 11 or unbalanced input consisting

of grounding Pin 10 via a capacitor and input to Pin 11.

· Pins 4 and 5 are the mixer outputs. Pins 4 and 5 are open collectors, so external power feed is necessary.

Also, connect single-tuned filters to Pins 4 and 5.

IF amplifier circuit

· Pins 1 and 2 are the IF amplifier inputs, and the input impedance is approximately 1.6k

· The signals frequency converted by the mixer are output from Pins 4 and 5, and Pins 4 and 5 are connected

to Pins 1 and 2 via capacitors. (An adjacent channel trap circuit can be formed by connecting LC parallel

circuits in place of capacitors.)

· The signal amplified by the IF amplifier is output from Pin 27. The output impedance is approximately 10

CXA3627ER

Description of PLL Block

This IC is controlled by the I

C bus.

The PLL of this IC performs high-speed phase comparison, providing low reference leak and quick lock-up

time characteristics.

During power on, the power-on reset circuit operates to initialize the frequency data to all "0" and the band

data to all "OFF". Power-on reset is performed when V

3.2V at room temperature (Ta = 25°C).

1) Address setting

Up to four addresses can be selected by the hardware bit settings, so that multiple PLL can exist within one

system.

The responding address can be set according to the ADSW pin voltage.

Address

MA1

MA0

R/W

MA1

MA0

ADSW pin voltage

0 to 0.1Vcc

OPEN or

0.2Vcc to 0.3Vcc

0.4Vcc to 0.6Vcc

0.9Vcc to Vcc

Hardware bits

2) Frequency data setting

The VCO lock frequency is obtained according to the following formula.

fosc = 2

fref

(32M + S)

fosc: local oscillator frequency

fref: phase comparison frequency

main divider frequency division ratio

swallow counter frequency division ratio

The variable frequency division ranges of M and S are as follows, and are set as binary.

S < M

1023

CXA3627ER

3) Control format

When performing control for this IC, byte 1 contains the address data, bytes 2 and 3 contain the frequency

data, byte 4 contains the control data, and byte 5 contains the band switch data.

These data are latch transferred in the manner of byte 1, byte 2 + byte 3, and byte 4 + byte 5.

When the correct address is received and acknowledged, the data is recognized as frequency data if the

first bit of the next byte is "0", and as control data and band switch data if this bit is "1".

Also, when data transmission is stopped part-way, the previously programmed data is valid. Therefore, once

the control and band switch data have been programmed, 3-byte commands consisting of the address and

frequency data are possible.

Further, even if the I

C bus stop conditions are not met, data can be input by sending the start conditions

and the new address.

The control format is as shown in the table below.

Slave Receiver

X: Don't care

Acknowledge bit

MA0, MA1:

address setting

M0 to:

main divider frequency division ratio setting

S0 to:

swallow counter frequency division ratio setting

CD:

charge pump OFF (when "1")

OS:

varicap output OFF (when "1")

CP:

charge pump current switching (200µA when "1", 50µA when "0")

GC:

gain switching (IC gain reduced by 2dB when "1")

BS1 to BS4: band switch control (output PNP transistor ON when "1")

R0, R1:

reference divider frequency division ratio setting (See the Reference Divider Frequency

Division Ratio Table.)

Reference Divider Frequency Division Ratio Table

MSB

bit 7

bit 6

bit 5

bit 4

bit 3

BS4

bit 2

MA1

BS3

bit 1

MA0

BS2

LSB

bit 0

BS1

Address byte

Divider byte1

Divider byte2

Control byte

Band SW byte

Mode

X: Don't care

Reference Divider

256

128

160

CXA3627ER

Example of Representative Characteristics

Vcc Supply voptage [V]

Icc Circuit current [mA]

Circuit current vs. Supply voltage

Output current [mA]

Output v

oltage [V]

Band SW output voltage vs. Output current

(BS1, BS2, BS3, BS4)

Reception frequency [MHz]

CG Con

ersion gain [dB]

Conversion gain vs. Reception frequency

(Untuned input)

Reception frequency [MHz]

NF Noise figure [dB]

Noise figure vs. Reception frequency

(Untuned input, in DSB)

Reception frequency [MHz]

CM Cross modulation [dBµ]

Next adjacent cross modulation vs. Reception frequency

(Untuned input)

Oscillation frequency [MHz]

+B dr

ift [kHz]

Oscillation frequency power supply fluctuation

(PLL off)

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.3

5.2

5.1

5.0

4.9

4.8

4.7

4.6

Vcc = 5V

100 200 300 400 500 600 700 800 900

VHF (Low)

VHF (High)

UHF

100 200 300 400 500 600 700 800 900

VHF (Low)

VHF (High)

UHF

120

100

110

100 200 300 400 500 600 700 800 900

VHF (Low)

VHF (High)

UHF

400

200

300

100

300

200

400

100 200 300 400 500 600 700 800 900

VHF (Low)

VHF (High)

UHF

= f

+ 12MHz

= f

12MHz

(100kHz, 30% AM)

Vcc + 5%
Vcc 5%
(Vcc = 5V)

VHF
UHF

= 45MHz

High gain mode

= 45MHz

High gain mode

= 45MHz

High gain mode

CXA3627ER

Reception frequency [MHz]

C/N Oscillator phase noise [dBc/Hz]

Oscillator phase noise vs. Reception frequency (untuned input)

RF level [dBm]

IF output le

el [dBm]

I/O characteristics (untuned input)

RF level (SG Setting level) [dBm]

PCS beat characteristics (untuned input)

VHF (Low)

VHF (High)

UHF

130

120

110

100

200

300

400

500

600

700

800

900

Beat

= 45MHz

High gain mode

1kHz offset
10kHz offset
100kHz offset

Local

= 495MHz

= 449.25MHz

fc = 452.83MHz

12dB)

fs = 453.75MHz

1.7dB)

= 45.75MHz

Beat

= f

± 950kHz

= 145MHz (VHF)

= 495MHz (UHF)

= 45MHz

High gain mode

CXA3627ER

SONY CODE

EIAJ CODE

JEDEC CODE

PACKAGE MATERIAL

LEAD TREATMENT

LEAD MATERIAL

PACKAGE MASS

EPOXY RESIN

SOLDER PLATING

COPPER ALLOY

PACKAGE STRUCTURE

VQFN-32P-03

32PIN VQFN (PLASTIC)

S A-B C

C 0.6

(0.15)

0.05g

0.9 ±

0.7

0.05 S

0.6 ± 0.1

0.1

0.05 M S A-B C

0.4

4.8

4.4

1.4

PIN1 INDEX

45°

P-VQFN32-4.4X4.4-0.4

TERMINAL SECTION

0.2 ±

0.01

Solder Plating

0.14 0.03

0.13 ± 0.025

+ 0.09

(Stand Off)

0.03 ±

0.03

ranges of 0.1mm and 0.25mm from the end of a terminal.

NOTE: 1) The dimensions of the terminal section apply to the

0.1

(0.39)

0.23 ±

0.02

LEAD PLATING SPECIFICATIONS

ITEM

LEAD MATERIAL

COPPER ALLOY

SOLDER COMPOSITION

Sn-Bi Bi:1-4wt%

PLATING THICKNESS

5-18

SPEC.

Sony Corporation

Package Outline Unit: mm

Part Number CXA3627ER