TDA4670 Datasheet, PDF (9/16 Pages) NXP Semiconductors – Picture Signal Improvement PSI circuit

Philips Semiconductors
Picture Signal Improvement (PSI) circuit
Product specification
TDA4670
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
I²C-bus control, SDA and SCL
V_IH
HIGH level input voltage on
pins 9 and 10
V_IL
I_9,10
V_o(ACK)
LOW level input voltage
input current
output voltage at acknowledge on I_o(ACK) = 3 mA
pin 9
I_o(ACK)
output current at acknowledge on sink current
pin 9
3
−
5
V
0
−
1.5
V
−
−
±10
µA
−
−
0.4
V
3
−
−
mA
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.
I²C-BUS FORMAT
S⁽¹⁾
SLAVE ADDRESS⁽²⁾
ACK⁽³⁾
SUBADDRESS⁽⁴⁾
ACK⁽³⁾
DATA⁽⁵⁾
P⁽⁶⁾
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 I²C-bus transmission; see Table 2
FUNCTION SUBADDRESS
D7
D6
D5
Y delay/CTI/SC
00010000
0
SC5
CTI
Peaking and coring 00010001
COR PEAK LCF
DATA
D4
D3
DL4
DL3
0
0
D2
D1
D0
DL2
DL1
DL0
0 PCON1 PCON0
1996 Dec 11
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