Radio. CXA1191 Datasheet

CXA1191 Datasheet PDF

Part CXA1191
Description FM/AM Radio
Feature CXA1191; UNISONIC TECHNOLOGIES CO., LTD CXA1191 LINEAR INTEGRATED CIRCUIT FM/AM Radio  DESCRIPTION The U.
Manufacture Unisonic Technologies
Datasheet
Download CXA1191 Datasheet




CXA1191
UNISONIC TECHNOLOGIES CO., LTD
CXA1191
LINEAR INTEGRATED CIRCUIT
FM/AM Radio
DESCRIPTION
The UTC CXA1191 is a one-chip FM/AM radio IC designed for
radio-cassette tape recorders and headphone tape recorders.
FEATURES
*Small number of peripheral components
*Low current consumption (Vcc=3V)
FM: lD=5.3mA (Typ.)
AM: lD=3.4mA (Typ.)
*Built-in FM/AM select switch
*Large current of AF amplifier
FUNCTIONS
FM section
RF amplifier, Mixer and OSC
(incorporating AFC variable capacitor)
IF amplifier
Quadrature detection
Tuning LED driver
AM section
RF amplifier, Mixer and OSC (with RF AGC)
IF amplifier (with IF AGC)
Detector
Tuning LED driver
AF section
Electronic volume control
FM muting
Structure
Bipolar silicon monolithic IC
ORDERING INFORMATION
Ordering Number
CXA1191G-D28-T
CXA1191G-S28-R
CXA1191G-S28-T
Package
DIP-28
SOP-28
SOP-28
Packing
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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QW- R110-014.C



CXA1191
CXA1191
MARKING
PACKAGE
DIP-28
SOP-28
LINEAR INTEGRATED CIRCUIT
MARKING
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW- R110-014.C



CXA1191
CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
PIN DESCRIPTION SYMBOL
1 MUTE
VOLTAGE(V)
VCC=3V
VCC=6V
FM AM FM AM
0000
EQUIVALENT CIRCUIT
2 Phase-shift circuit, Connect FM DISCRI 2.18 2.7 4.88 5.43
ceramic discriminator.
3 Negative feedback pin
NF 1.5 1.5 3.0 3.0
27 Power amplifier output pin
AF OUT 1.5 1.5 3.0 3.0
4 Connect variable resistor for VOL CONT 1.25 1.25 1.25 1.25
electronic volume control.
5 AM local oscillation circuit
AM OSC 1.25 1.25 1.25 1.25
6 AFC variable capacitor pin
8 Regulator pin 1.25V (Typ.)
AFC
1.25 Note 1.25 Note
REG OUT 1.25 1.25 1.25 1.25
7 FM local oscillation circuit
FM OSC 1.25 1.25 1.25 1.25
9 Connect FM RF tuning coil. FM RF 1.25 1.25 1.25 1.25
12 FM RF input pin
FM RF IN 0.3 0 0.3 0
10 AM RF input
11
13
10
AM RF IN 1.25 1.25 1.25 1.25
Vcc
NC 0 0 0 0
GND
(FE GND)
0
0
0
0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 8
QW- R110-014.C







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