LV23411V Datasheet, PDF (5/23 Pages) Sanyo Semicon Device – For Home Stereo Systems FM/AM Tuner IC

LV23411V
Pin internal circuit description
Pin No.
Pin name
Pin voltage (V)
Description
1 AM-ANT
2.2
AM antenna input pin.
The AM antenna coil is connected between pins
40 and this pin.
R = 100Ω
Internal equivalent circuit
1
2
R
R
2 AM-REF
3 AM-CAP
2.2
Reference voltage pin for AM.
VAM-REF = 2.2V
-
Tuning pinl for AM.
(AM Capacitor Bank)
15
2.2V
Regulator
2
CAP-BANK
3
4 GND1
5 VREF1
0
GND pin for Analogue AM_FE part.
4.3
Analogue part (tuner) reference bias terminal.
VREF1 = 4.3V
6 MPX IN_OUT
2.5
FM demodulation output /input for MPX.
R = 100Ω
7 AM RF-AGC
-
Pin for AM_RF AGC.
R1 = 2MΩ
R2 = 5kΩ
R3 = 250Ω
R4 = 1kΩ
8 GND2
9 L-OUT
10 R-OUT
0
2.6
(3.7V when
LEVSHIF = 1)
GND pin for Analogue tuner part.
L-ch (R-ch) output pin.
R = 100Ω
ROUT = 150Ω
15
4.3V
Regulator
5
R
6
R2
R4
7
R3
R1
15
10
R
9
Continued on next page.
No.A1990-5/23