SONY CXA1082BQ Diagram

Achieving a Common Chassis Worldwide Y, C, and Synchronizing Signal Processing ICs

CXA2060AS CXA2061S

Sony provides an extensive lineup of Y, C, and synchronizing signal processing ICs (YCD). These ICs take advantage of earlier TV ICs and in addition adopt new technologies to incorporate even more peripheral components and functionality in the same chip. The CXA2060AS supports NTSC, PAL (including PAL-M and PAL-N), and SECAM, whereas the CXA2061S is a special-purpose NTSC YCD chip. Thus the pin compatible CXA2060AS and CXA2061S support all TV broadcast regions and can achieve a common chassis worldwide.

Worldwide Horizontal

Deployment

The CXA2060AS is a single-chip Y,C, and synchronizing signal processing IC (YCD) that includes both a 1H delay line and a SECAM decoder on chip, and the CXA2061S is a special-purpose NTSC YCD. While it goes without saying that these chips are pin compatible, their I2C control registers are also identical, making them software compatible as well. These two products were designed to allow a common chassis to be used in all TV broadcast regions. Figure 1 shows the block diagram of the CXA2060AS.

Built-in 1H Delay Line and SECAM Decoder

The CXA2060AS includes an on-chip 1H delay line and an on-chip SECAM decoder. While earlier products such as the CXA2000Q required an external 1H delay line for PAL and an external SECAM decoder for SECAM, by including these circuits on chip, the CXA2060AS allows the same circuit to provide the different types of signal processing required by NTSC, PAL, and SECAM. This allows the same chassis to be used for all reception areas, including NTSC-only areas, PAL/SECAM areas, and NTSC/PAL-M/PAL-N areas.

Reduced Peripheral Components Count

■ Reduced peripheral components

count

■ On-chip 1H delay line

■ On-chip SECAM decoder

■ On-chip video switch

■ Three crystal oscillator pin sets

for PAL-M and PAL-N support

■ The CXA2060AS and CXA2061S

are pin compatible.

this single chip can completely support all aspects of a color system.

Vertical Deployment from the Low End to the

High End

Since these chips also provide Y and color difference signal input/output, a feature block can be added. Since an fsc output is provided, a digital comb filter can be used. Thus these chips support flexible deployment in higher grade television systems. The CXA2060AS and the CXA2061S not only aim for extensive and complete television functionality, but also promise the achievement of a common chassis worldwide.

Figure 2 presents a sample application circuit. In addition to the components

VOICE

We are finally seeing the debut of single-chip support for multiformat systems! We performed extensive field testing in developing this IC, looking for signals that are difficult to receive in all corners of the world. As a result, this IC achieves the best SECAM discrimination performance of the century! Sony’s engineers strongly recommend that you try this IC.

used in this system, a video switch, a 1H delay line, and a SECAM decoder would be required to construct the same system using earlier products. The CXA2060AS includes these devices on chip. (The CXA2061S only includes the video switch on chip.) Since a high-performance sync separator system for the input signal is fully included on chip, no separate sync separator circuit input signal is required. Additionally, the sample-and-hold capacitor for the autocutoff circuit (AKB) is built in, and capacitors and an oscillator element are not required for the H/V oscillator. Thus

APCFIL48XTAL147XTAL244V

APC

<HUE>

ACC Det.

Chroma

Amp.

BPF

PAL: 4.43MHz

NTSC: 3.58MHz

<C BPF>

ACC Amp. (SECAM ACC Det.)

Chroma

Chroma SW

43TV/C2IN

2C1IN

41CVBS2/Y2IN

Y SW

4CVBS1/Y1IN

Monitor SW

7COMB CIN 9COMB YIN

(Video SW) <VIDEO SEL>

6MON OUT

<S SEL>

XTAL3

(FSC OUT)

CVCO FSC OUT

4.433619MHz <FSC SW>

3.579545MHz

3.575611MHz

3.582056MHz

Color System Discriminator <XTAL> <ID LEVEL> <COL SYSTEM> <COL LOOP> <<KILLER ID OFF>> <NO COLOR> <<PAL>> <ID STOP> <<SECAM>> <ID START> <<XTAL ID>>

Bell

Filter

ATT

V Sync Sep. <VSS>

H Sync Sep. <HSS> <HMASK> <<RF LEVEL>>

PLL

LIM

SECAM

Amp.

FM Demod.

Trap PAL : 4.43MHz NTSC : 3.58MHz SECAM : 4.2 + 4.43MHz

CC2

GND28Y CLAMP1APED

PAL/NTSC

Demod.

Filter Alignment

Count Down Line Counter <FIELD FREQ> <V UNDER SCAN>

CAL. by fxc

AFC

SECAM

Line BLK

De-

emphasis

SECAM

VCO

CAL by

4.43MHz

DL PAL/NTSC 300 ± 100ns SECAM 600 ± 200ns <Y DELAY>

V TIM Gen.

HSAW Gen.

<HOSC>

AFCFIL

SW NTSC, PAL/ SECAM

Killer <KILLER OFF>

Delay Line

DPIC <DPIC> <AGING>

Clamp DC TRAN <DC TRAN>

Sharpness DL Sharpness Amp. <SHARPNESS> <SHP F0> <PRE/OVER>

VSAW Gen.

(50/60)

VTIM

H TIM Gen. <H BLK> <LEFT HBLK> <RIGHT HBLK>

SCP

VMOUT/VPROT

EBYIN38ERYIN37EYIN36YUVSW28R1IN27G1IN26B1IN25YSI32R2IN (YOUT)

EYUV Clamp YUV SW <Y SEL> YUVOUT

VPROT <<VNG>> VM Amp. (OFF YS/YM)

Wide Saw Func.

Phase Det. <H POSITION> <AFC BOW> <AFC ANGLE> HPROT <<HNG>>

VTIM

Color Amp. <COLOR> <C OFF> Axis <AXIS PAL> <AXIS NTSC>

Y/C Mix.

RGB Clamp

HP/HPROT

Clamp

RGB 1/2

YM SW

YSI SW

YS2 SW

Dynamic Color

DAC <*1> SW <*1>

VD SAW Func. <VON> <S CORRECTION> <V SIZE> <V LINEARITY> <V POSITION> <EHT COMP>

EW Parabola Func. <H SIZE> <TRAPEZIUM> <PIN AMP> <EW DC> <CORNERPIN>

HD Gen. <HD W>

*1: Including all control signals enclosed in single angle brackets ( <...> ). *2: Including all status signals enclosed in double angle brackets ( <<...>> ).

ABL/Peak ABL <ABL MODE> <ABL VTH>

<GAMMA>

Picture Amp.

Gamma Amp.

IREF REG

GND1

G2IN (R-YOUT)

B2IN (B-YOUT)

YS2/YM

AKB

<<IKR>>

Clamp

Drive Amp.

Bright Cont.

Cutoff Cont.

I2C bus

Decoder

Status I/F

<<*2>>

CC1

REG

IREF

<PON>

R/G/B BLK

42 ABLFIL

3 ABLIN

21 IKIN

24 BOUT 23 GOUT 22 ROUT

35 SDA 34 SCL

14 VDN 13 VDP

11 EW

■ Figure 1 CXA2060AS Block Diagram

1µ

APED

0.01µ 2

0.1µ

1µ

10k

10µ

0.1µ

1µ

12k

C1 IN

ABL IN

CVBS1/Y1 IN

VTIM

MON.OUT

COMB C IN

Y CLAMP

COMB Y IN

GND1

I REF

VD+

VD–

VM OUT/VPROT

REG

SCP

HP/PROTECT

AFC FIL

IK IN

R OUT

G OUT

B OUT

CVBS/S Input 1

V Timing Output

Monitor Output

V Parabola Output

V Drive Output

VM Output

V Protection Input

SCP Output

Flyback Pulse Input

X-ray Protection Input

H Drive Output

C Board

ABL Input

Glass Comb

2.2k

10k

0.1µ

Filter

1µ

4700p

Vth≈5V

XTAL1 XTAL2 XTAL3

APC FIL

CC2

TV/C2 IN

ABL FIL

CVBS2/Y2 IN

GND2

EB-Y IN

ER-Y IN

EY IN

YUV SW

SDA SCL

CC1

V R2 IN G2 IN B2 IN

YS2/YM

R1 IN G1 IN B1 IN

YS1

18p

46 45 44 43

1µ

41 40

0.01µ

4.7µ

220p

0.1µ

10k 0.22µ

CVBS from Tuner Input CVBS/S 2 Input

External YUV Input

PAL/SECAM/NTSC:

XTAL1: 4.43361875MHz XTAL2: 3.579545MHz XTAL3: Open or FSC Output

PAL-M/NTSC/PAL-N:

XTAL1: 3.57561149MHz XTAL2: 3.579545MHz XTAL3: 3.58205625MHz

Note: In the CXA2061S, Pins 46 and 48 are unused and must be left open.

36 35 34 33 32 31 30 29 28 27 26 25

47µ

0.1µ

0.01µ

I2C

+ 9V

External RGB Input 2 (for OSD/TEXT)

External RGB Input 1 (for SCART)

■ Figure 2 CXA2060AS/CXA2061S Application Circuit Example