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PDF TA8772AN Data sheet ( Hoja de datos )
| Número de pieza | TA8772AN | |
| Descripción | PAL/SECAM/NTSC BASE 1H DELAY SYSTEM FOR COLOR TV OR VCR | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TA8772AN (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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TA8772AN
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8772AN
PAL / SECAM / NTSC BASE BAND 1H DELAY SYSTEM FOR COLOR TV OR VCR
The TA8772AN has two chips, a bipolar chip and a CCD chip, in a
package.
CCD chip consist of two delaylines which operate to delay R-Y
and B-Y signal. Bipolar chip operate to control the signals which
is processed by CCD stage.
FEATURES
Bipolar stage
l AGC circuit
l L.P.F.
l DC clamp circuit
l Mode SW
l 225fH VCO circuit
(For correcting output level)
(For reducing CCD clock)
(For reducing the difference of DC l
vel between delay signal and direct
ignal.)
Weight: 1.99g (Typ.)
(For control output signal by PAL, NTSC or SECAM ident)
(For making CCD clock)
CCD stage
l CCD drive circuit
l Sample & Hold circuit
l Input bias circuit
l Synctip clamp circuit (This device’s dynamic range bear no relation to change of APL on adopt this circuit)
l Delay time of 1H consist of supply 225fH clock.
TOTAL
l This device can operate by the smallest external parts because of include CCD drive circuit, bias generator
circuit and output amplifier for support CCD circuit.
1 2002-01-17
1 page  
PIN
No.
PIN NAME
14 VDD
FUNCTION
This terminal is power supply
terminal for supplying 5V
(Typ.) to CCD circuit.
16 VOUT2
This terminal outputs delayed
signal of R-Y.
INTERFACE CIRCUIT
―
19 VOUT1
This terminal outputs delayed
signal of B-Y.
17 VOB2
18 VOB1
20 VGG
21 GND
This terminal controls output
DC level of pin 16.
This terminal controls output
DC level of pin 19.
This terminal is applied
VCC×2 voltage by internal
voltage booster.
This terminal is GND terminal
for bipolar circuit.
22 R-Y from CCD
This is input terminal of
delayed R-Y signal.
―
―
23 B-Y from CCD
This is input terminal of
delayed B-Y signal.
TA8772AN
TERMINAL
SIGNAL
―
230mVp-p
A : 3.50V
B : 3.15V
270mVp-p
A : 3.50V
B : 3.15V
DC 1.5V
DC 10.5V
―
230mVp-p
A : 4.50V
B : 4.15V
270mVp-p
A : 4.50V
B : 4.15V
5 2002-01-17
5 Page 
TA8772AN
Note B9:
Pin 27 Input Dynamic Range.
(1) Pin 7 : Pulse OFF.
(2) Apply 100kHz sin curve signal to pin 27 with, 5.2V bias.
(3) Observe pin 2 with spectrum analyzer measure input signal amplitude when 3rd harmonic is
−40dB against fundamental wave.
Note B10: Pin 26 Linearity
(1) Pin 7 : Pulse OFF.
(2) Measure V3a − V3f at condition mentioned in below table.
Applied voltage to pin 26
Measured voltage at pin 3
4.70V
V3a
5.00V
V3b
5.05V
V3c
5.35V
V3d
5.50V
V3e
5.80V
V3f
(3) Calculate followings.
1) Get the slopes.
G1 = (V3b − V3a) ÷ 0.3
G2 = (V3d − V3c) ÷ 0.3
G3 = (V3f − V3e) ÷ 0.3
2) Get the linearitys.
LN1 = 100 × (G1 − G2) ÷ G2
LN2 = 100 × (G2 − G3) ÷ G3
LN3 = 100 × (G3 − G1) ÷ G1
Note B11: Pin 27 Linearity.
(1) Pin 7 : Pulse OFF.
(2) Measure V2a − V2f at condition mentioned in below table.
Applied voltage to pin 27
Measured voltage at pin 2
4.70V
V2a
5.00V
V2b
5.05V
V2c
5.35V
V2d
5.50V
V2e
5.80V
V2f
(3) Calculate followings.
1) Get the slopes.
G1 = (V2b − V2a) ÷ 0.3
G2 = (V2d − V2c) ÷ 0.3
G3 = (V2f − V2e) ÷ 0.3
2) Get the linearitys.
LN1 = 100 × (G1 − G2) ÷ G2
LN2 = 100 × (G2 − G3) ÷ G3
LN3 = 100 × (G3 − G1) ÷ G1
Note B12:
Pin 2 Output Level.
(1) Pin 7 : Pulse OFF.
(2) Apply 100kHz, 0.8Vp-p, sine signal to pin 27 with, 5.2V bias.
(3) Measure the output level of pin 2.
Note B13:
Pin 3 Output Level.
(1) Pin 7 : Pulse OFF.
(2) Apply 100kHz, 0.8Vp-p, sine signal to pin 26 with, 5.2V bias.
(3) Measure the output level of pin 3.
Note B14: Pin 2 Pulse Ins. Level.
(1) Pin 7 : Input Sand Castle Pulse.
(2) Observe pin 2, Measure amplitude of pulse.
Note B15: Pin 3 Pulse Ins. Level.
(1) Pin 7 : Input Sand Castle Pulse.
(2) Observe pin 3, Measure amplitude of pulse.
Note B16: RP Pulse Delay Time.
(1) Pin 7 : Input Sand Castle Pulse.
(2) Observe pin 7 and 3, Measure the period from leading at edge at pin 7 to trailing edge at pin 3.
Note B17:
L.P.F. f0 (1)
(1) Pin 7 : Input Sand Castle Pulse.
(2) Apply 2.0V to pin 8.
(3) Apply 4.5V to pin 28.
(4) Pin 24 : OPEN.
(5) Apply 9.0V to pin 25.
(6) Input 0.8Vp-p sin wave signal to pin 23, Measure frequency response at pin 29.
Note: Get the frequency when amplitude is −3dB against amplitude at 100kHz.
11 2002-01-17
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet TA8772AN.PDF ] | |
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