BA7357S Datasheet, PDF (4/15 Pages) Rohm – VIF / SIF signal processor

Video ICs
•^{Equivalent circuits}
Pin No. Pin name IN / OUT Standard voltage
Equivalent circuit
VCC
500
1 AFTOUT OUT
—
1k
1
500
GND
VCC
4k
2
RFAGC OUT
—
2
BA7357S
Function
AFT output.
Vreg / GND push-pull output.
RFAGC output.
Open-collector output. Gain can be
set using an external resistor
(minimum value of the maximum sink
current of pin 2 is 0.7mA) . Keep the
pin 2 voltage at 10.5V or less.
3 AGCADJ —
2.7V
(when 100kΩ
resistor
connected)
3
GND
VCC
4.5k
RFAGC delay point adjustment.
Connect to GND via a variable
resistor (approx. 100kΩ).
4k
1k
25.2k
400
GND
VCC
For filter time constant for VIFAGC.
4 AGCFLT —
5.0V
4
GND
5
GND1 —
0V
—
∗ VCC and VCC2 in the equivalent circuit diagrams are connected to the Vreg terminal (pin 18).
GND terminal for VIF, AGC and AFT.
4