Multimedia ICs
•Guaranteed design values (unless otherwise noted, Ta = 25°C, VCC = 5V)
Parameter
Symbol
Min. Typ. Max. Unit
Conditions
Voltage gain
Gv
5.5
6.0
6.5
dB f = 4.43MHz, 1VP-P
Interchannel voltage gain
∆Gv
– 0.5
0.0
0.5
dB f = 100kHz, 1VP-P
BA7665FS
•Mute SW mode settings
• MUTEA (1pin)
H
3ch MUTE
L
NORMAL
• MUTEB (8pin)
H CHROMA MUTE
L
NORMAL
•Pin descriptions and equivalent I / O circuits
Pin. No Pin name IN OUT Standard potential
Equivalent I / O circuit
1
MUTEA K —
—
8
MUTEB
15k
8k
Pin description
Mute control pin
When MUTE A (pin 1) goes high, all
three channels are muted at the same
time. When MUTE B (pin 8) goes
high, OUTB and the MIXOUT chroma
signals are muted.
2
INA K —
2.0V
3
4
GND — —
0V
5
Signal input pin
This is the input pin for the composite
Y signal (sync-tip clamp input).
↓
Ground pin
GND
7
INB K —
2.0V
Signal input pin
Bias-type input pin for the chroma
20k
signal. The input impedance is 20kΩ.
↓
5