Sony CXA1619BS, CXA1619BM Datasheet

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E99214-TE
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage VCC 14 V
Storage temperature Tstg –50 to +125 °C
Allowable power dissipation
PD 700 mW
(CXA1619BM)
PD 1000 mW
(CXA1619BS)
Recommended Operating Conditions
Supply voltage VCC 2 to 7.5 V
(CXA1619BM)
VCC 2 to 8.5 V
(CXA1619BS)
Description
CXA1619BM/BS is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders, and has the following functions.
Features
Small number of peripheral components.
Low current consumption (VCC=3 V)
For FM : ID=5.8 mA (Typ.) For AM : ID=4.7 mA (Typ.)
Built-in FM/AM select switch.
Large output of AF amplifier.
EIAJ output=500 mW (Typ.) when VCC=6 V, load impedance 8
Function
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
Structure
Bipolar monolithic IC
FM/AM Radio
CXA1619BM CXA1619BS
28 pin SOP (Plastic) 30 pin SDIP (Plastic)
CXA1619BM/BS
For the availability of this product, please contact the sales office.
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CXA1619BM/BS
Block Diagram
CXA1619BM
CXA1619BS
FM/AM
BAND
SELECT
AM
IF IN
FM
IF INNCMETER
IF
GND
AFC AGC
AFC AGC
DET OUT
AF
IN
Ripple
FILTERVCC
AF
OUTGND
GND FM
DISCRI
NF AM
OSC
AFC FM
OSC
Reg
OUTFMRFAMRF IN
NC FM
RF INFEGND
FM/AM
FE OUT
VOL
TUNING METER
FM IF
FM
DISCRIMINATOR
FM FE
AF POWER AMP
1 2 3 4 5 6 7 8 9
10 11 12 13
14
28 27 26 25 24 23 22 21
20 19 18 17 16
15
AM IF DET AGC
AM FE
FM/AM
BAND
SELECT
AM
IF IN
FM
IF INNCMETER
IF
GND
AFC AGC
AFC AGC
DET OUT
AF
IN
Ripple
FILTERVCC
AF
OUTGNDGND
GND FM
DISCRI
NF AM
OSC
AFC FM
OSC
Reg
OUTFMRFAMRF IN
NC FM
RF INFEGND
FM/AM
FE OUT
VOL
GND
AM IF DET AGC
AM FE
FM FE
FM IF
28 27 26 25 24 23 22 21
20 19 18 17
16
2930
AF POWER AMP
TUNING METER
FM
DISCRIMINATOR
15
1 2 3 4 5 6 7 8 9
10 11 12 13 14
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CXA1619BM/BS
Standard Circuit Design Data (The pin numbers in the parenthesis are for CXA1619BS.)
Voltage (V)
No. Symbol VCC=3 V VCC=6 V Equivalent circuit Description
FM AM FM AM
1
(1, 2)
2 (3)
3 (4)
27 (28)
4 (5)
5 (6)
6 (7)
8 (9)
7 (8)
GND
FM DISCRI
NF
AF OUT
VOL CONT
AM OSC
AFC
REG OUT
FM OSC
0 0 0 0
2.18 2.70 4.88 5.43
1.5 1.5 3.0 3.0
1.5 1.5 3.0 3.0
1.25 1.25 1.25 1.25
1.25 1.25 1.25 1.25
1.25 1.25
1.25 1.25 1.25 1.25
1.25 1.25 1.25 1.25
2
1k
1.2k
3
27
V
CC
GND
×100
×100
4
GND
20k
80k
5
3.6k
6
8
1.25V (REG)
7
Phase-shift circuit Connect ceramic discriminator
Negative feedback pin
Power amplifier output pin
Connect variable resistor for electronic volume control.
AM local oscillation circuit
AFC variable capacitor pin
Regulator pin 1.25 V (Typ.)
FM local oscillation circuit
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CXA1619BM/BS
Voltage (V)
No. Symbol VCC=3 V VCC=6 V Equivalent circuit Description
FM AM FM AM
9 (10)
12 (13)
10 (11)
11 (12)
13 (14)
14 (15)
15 (16)
16 (17)
17 (18)
18 (19)
FM RF
FM RF IN
AM RF IN
NC GND
(FE GND)
FM/AM FE OUT
BAND SELECT
AM IF IN
FM IF IN
NC
1.25 1.25 1.25 1.25
0.3 0 0.3 0
1.25 1.25 1.25 1.25
0 0 0 0
0 0 0 0
0.36 0.2 0.36 0.2
1.30 0 1.30 0
0 0 0 0
0.34 0 0.88 0
0 0 0 0
9
3p
8k
1k
12
10
V
CC
AM FM
220
14
15
GND
VCC
16
2k
Connect FM RF tuning coil
FM RF input pin
AM RF input pin
IF output pin of FM and AM. Connect IF filter.
FM and AM bands selection switch pin. During GND it becomes AM and during open it becomes FM.
Input pin of AM IF.
Input pin of FM IF.
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