1996 Dec 11

9

Philips Semiconductors

Product specification

Picture Signal Improvement (PSI) circuit

TDA4670

Notes

1. Crosstalk on output, measured in the unused channel when the other channel is provided with a nominal input signal

(CTI active).

2. A number of more than 31 burst key pulses repeats the counter cycle of delay time control.

Notes

1. S = START condition.

2. SLAVE ADDRESS = 1000 100X.

3. ACK = acknowledge, generated by the slave.

4. SUBADDRESS = subaddress byte, see Table 1.

5. DATA = data byte, see Table 1.

6. P = STOP condition.

7. X = read/write control bit.

X = 0, to write (the circuit is slave receiver only).

If more than 1 byte DATA is transmitted, then auto-increment of the subaddress is performed.

Table 1

HIGH level input voltage on

pins 9 and 10

3

−

5V

LOW level input voltage

0

−

1.5

V

input current

−−±10

µA

output voltage at acknowledge on

pin 9

−−

0.4

V

output current at acknowledge on

pin 9

sink current

3

−−

mA

FUNCTION

SUBADDRESS

DATA

D7

D6

D5

D4

D3

D2

D1

D0

Y delay/CTI/SC

00010000

0

SC5

CTI

DL4

DL3

DL2

DL1

DL0

Peaking and coring

00010001

COR

PEAK

LCF

0

0

0

PCON1

PCON0

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT