LA74308LP_08 SANYO [Sanyo Semicon Device], LA74308LP_08 Datasheet - Page 15

• Manufacturer Part Number: LA74308LP_08
• Description: Audio Interface for DSC
• Manufacturer: SANYO [Sanyo Semicon Device]

Continued from preceding page.
PIN
16
17
18
19
20
24
21
22
MIC OUT (REC)
LPF OUT (PB)
SPK OUT+
Pin Name
MIC V CC
SP GND
V CC SP
VREFL
MIC IN
DC voltage
2.30V
2.30V
1.27V
1.5V
1.5V
3.3V
0V
At PB reference input
Reference input level
Output level = -9dBV
Max input level
(EVR MAX)
AC voltage
=-70dBV
=-25dBV
LA74308LP
MIC output pin
(for REC mode)
LPF output pin
(for PB mode)
MIC input pin
MIC power pin
MIC V CC and VREFL ripple
rejection pin
Speaker GND pin
Speaker positive-phase output pin
Speaker power pin
Description of functions
19
21
16
17
18
Equivalent circuit diagram in pin
400Ω
V CC SP(=3.3V)
V CC (=3.0V)
V CC (=3.0V)
10kΩ
2.2kΩ
500Ω
500Ω
V CC (=3.0V)
23
V CC (=3.0V)
VREFL
10.7kΩ
200kΩ
500Ω
28kΩ
70kΩ
No.A0898-15/16