TDA3845 Datasheet, PDF (4/18 Pages) NXP Semiconductors – Quasi split-sound circuit and AM demodulator

Philips Semiconductors
Quasi split-sound circuit and AM
demodulator
(1) not for TDA3845T, pin 11 not connected.
Fig.2 Pin configuration.
Objective specification
TDA3845; TDA3845T
PINNING
SYMBOL PIN
DESCRIPTION
IF2
1 IF amplifier input 2
n.c.
2 not connected
AGC
3 AGC control capacitor
OPT
4 optional capacitor (see note 10 to
the characteristics)
PMD
5 peak/mean detector capacitor
AM
6 AM output
SW
7 FM/AM switch
LC_REF
8 LC reference circuit for the picture
carrier
LC_REF
9 LC reference circuit for the picture
carrier
n.c.
10 not connected
V_P2
11 positive supply voltage 2
(+12 V); note 1
ICO
12 intercarrier output
GND
13 ground (0 V)
V_P1
14 positive supply voltage 1 (+5 V)
n.c.
15 not connected
IF1
16 IF amplifier input 1
Note to Pinning
1. Not for TDA3845T, pin 11 not connected.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC134)
SYMBOL
PARAMETER
V_P1
V_P2
T_amb
T_stg
supply voltage
pin 14
pin 11 (not for TDA3845T)
operating ambient temperature
storage temperature
MIN.
MAX.
UNIT
4.5
8.8
V
10.8
13.2
V
0
+70
°C
−25
+125
°C
January 1993
4