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CXA1619AM/AS
FM/AM Radio For the availability of this product, please contact the sales office.
Description CXA1619AM/AS 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=450 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 CXA1619AM 28 pin SOP (Plastic) CXA1619AS 30 pin SDIP (Plastic)
Absolute Maximum Ratings (Ta=25 C) * Supply voltage VCC 14 V * Operating temperature Topr -10 to +60 C * Storage temperature Tstg -50 to +125 C * Allowable power dissipation PD 700 mW (CXA1619AM) PD 1000 mW (CXA1619AS) Recommended Operating Conditions Supply voltage VCC 2 to 7.5 V (CXA1619AM) VCC 2 to 8.5 V (CXA1619AS)
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.
--1--
E98419-TE
CXA1619AM/AS
Block Diagram CXA1619AM
AF GND OUT 28 27
Ripple AF VCC FILTER IN 26 25 24
DET AFC AFC OUT AGC AGC 23 22 21
IF GND METER NC 20 19 18
FM/AM FM AM BAND IF IN IF IN SELECT 17 16 15
AM IF DET AGC
TUNING METER
AF POWER AMP
AM FE FM DISCRIMINATOR FM FE
FM IF
1
GND
2
3
4
VOL
5
AM OSC
6
AFC
7
8
9
FM RF
FM NF DISCRI
FM Reg OSC OUT
10 AM RF IN
11 NC
12 13 14 FM FE FM/AM RF IN GND FE OUT
CXA1619AS
AF GND GND OUT 30 29 28
Ripple AF VCC FILTER IN 27 26 25
DET AFC AFC OUT AGC AGC 24 23 22
IF GND METER NC 21 20 19
FM/AM FM AM BAND IF IN IF IN SELECT 18 17 16
AM IF DET AGC
TUNING METER
AF POWER AMP
AM FE FM IF FM DISCRIMINATOR FM FE
1
2
3
4
5
VOL
6
AM OSC
7
AFC
8
9
GND GND
FM NF DISCRI
FM Reg OSC OUT
10 FM RF
11 AM RF IN
12 NC
15 13 14 FM FE FM/AM RF IN GND FE OUT
--2--
CXA1619AM/AS
Standard Circuit Design Data No. 1 (1, 2) Symbol Voltage (V) VCC=3 V VCC=6 V FM AM FM AM 0 0 0 0
(The pin numbers in the parenthesis are for CXA1619AS.) Equivalent circuit Description
GND
2
2 (3)
FM DISCRI
2.18 2.70 4.88 5.43
1.2k
1k
Phase-shift circuit Connect ceramic discriminator
3 (4)
NF
1.5 1.5 3.0 3.0
VCC x100 27 x100
Negative feedback pin
27 (28) AF OUT
1.5 1.5 3.0 3.0
3
GND
Power amplifier output pin
4
20k
4 (5)
VOL CONT
1.25 1.25 1.25 1.25
80k GND
Connect variable resistor for electronic volume control.
5
5 (6)
AM OSC
1.25 1.25 1.25 1.25
3.6k
AM local oscillation circuit
6 (7) 8 (9)
AFC REG OUT
1.25
1.25
6
8
1.25V (REG)
AFC variable capacitor pin Regulator pin 1.25 V (Typ.)
1.25 1.25 1.25 1.25
7
7 (8)
FM OSC
1.25 1.25 1.25 1.25
FM local oscillation circuit
--3--
CXA1619AM/AS
No.
Symbol
Voltage (V) VCC=3 V VCC=6 V FM AM FM AM 1.25 1.25 1.25 1.25
Equivalent circuit
Description
3p
9 (10)
FM RF
9
8k
Connect FM RF tuning coil
12 (13) FM RF IN
0.3
0
0.3
0
12 1k
FM RF input pin
10
10 (11) AM RF IN
1.25 1.25 1.25 1.25
VCC
AM RF input pin
11 (12) NC 13 (14) GND (FE GND)
0 0
0 0
0 0
0 0
AM
FM
FM/AM 14 (15) FE OUT
0.36 0.2 0.36 0.2
220 14
IF output pin of FM and AM. Connect IF filter.
VCC
15 (16)
BAND SELECT
1.30
0
1.30
0
15 GND
FM and AM bands selection switch pin. During GND it becomes AM and during open it becomes FM.
16 (17) AM IF IN
0
0
0
0
16 2k
Input pin of AM IF.
17 (18) FM IF IN 18 (19) NC
0.34 0
0 0
0.88 0
0 0
Input pin of FM IF.
--4--
CXA1619AM/AS
No.
Symbol
Voltage (V) VCC=3 V VCC=6 V FM AM FM AM
Equivalent circuit
Description
19 1.25V x3
19 (20) METER
1.6 1.6 4.5 4.5
N GND
Meter drive circuit (For tuning indicator)
20 (21) GND
0
0
0
0 AFC pin of W band. During AM, it determines time constant of AGC AFC pin of J band. During AM, it determines time constant of AGC. Detection output pin
21 (22) AFC/AGC
1.25 1.49 1.25 1.49
22
22 (23) AFC/AGC
1.25 1.25 1.25 1.25
23
33k 39k
21
GND
23 (24) DET OUT
1.25 1.0 1.25 1.0
11k 24
24 (25) AF IN
0
0
0
0
x4
x4 82k GND
Power amplifier input pin
VCC
25 (26)
RIPPLE FILTER
17k
2.71 2.71 5.4 5.4
25 73k 90k
Ripple filter
26 (27) VCC 28 GND (29, 30)
3.0 3.0 6.0 6.0 0 0 0 0
Power supply pin Power GND
The pin voltage of pin 6 during AM, it is the same pin voltage of pin 22 (23) during J BAND and is the same pin voltage of pin 21 (22) during W BAND.
--5--
Electrical Characteristics Symbol Min. -- -- 32 39 77.5 4.8 7.6 39 10.0 14.0 46 mA mA dB 155 mVrms Typ. Max. Unit ID1 ID2 GV1 VD1 A----A B A VD 1 A A A No signal, AM No signal, FM VIN1=40 dBV, 100 MHz 6 A A A Conditions
(See the Electrical Characteristics Test Circuit, Ta=25 C, VCC=6 V)
No.
Item
1 2 3
AM circuit current FM circuit current FM front end voltage gain
SW conditions 2345 BAAA BAAB BAAB
Test Point IA IA VA
4
FM detection output level
5
FM IF knee level
VD2
A----A
B
A
VD
--
24
32
dBV
6 IB1 VIN3=60 dBV, 10.7 MHz VIN2=60 dBV, 1660 kHz GV2 GV3 VD3 IB2 THD2 GV4 THD3 A--------B A--------B A A B B A A VD VE VE A A--A A A IM A A--A A A VD A A--A A A VD A A A A A A VB A----A B A IM
FM detection output distortion factor THD1 A----A B A VD
VIN3=90 dBV, 10.7 MHz (1 kHz, 22.5 kHz DEV) VIN3=level at a point 3 dB down from VIN3=90 dBV, 10.7 MHz (1 kHz, 22.5 kHz DEV) VIN3=90 dBV, 10.7 MHz (1 kHz, 75 kHz DEV) -- 1.8 15 14 39 1.3 -- VIN4=-30 dBm, 1 kHz Distortion factor for output of 50 mW VIN4=-20 dBm, 1 kHz 27 -- 0.3 3.5 22 20 77.5 3.0 0.6 31.5 0.9
2.0 7.0 29 27
% mA dB dBV 155 mVrms 7.0 2.0 36 2.5 mA % dB %
7
FM meter current
--6--
8
AM front end voltage gain
9
AM IF voltage gain
10
AM detection output level
VIN3 when 455 kHz (1 kHz, 30 % MOD) output is -34 dBm VIN3=85 dBV, 455 kHz (1 kHz, 30 % MOD) VIN3=85 dBV, 455 kHz VIN2=95 dBV, 1660 kHz (1 kHz, 30 % MOD)
11
AM meter current
12
AM detection output distortion factor
13
Audio voltage gain
14
Audio distortion factor
CXA1619AM/AS
0 dBV=1 V
Electrical Characteristics Test Circuit
REG 150 24p BPF 30p S1 1000p 8p 10 AM RF IN FM RF Reg OUT FM OSC AFC AM OSC VOL NF 14 FM/AM FE FM FE OUT GND RF IN NC 13 12 11 30p 1 150 CF3 33k 33k BA 150H 43p 10p 50k 100k OSC
AFC 24k 24k
100 10
0.01
VIN2
VIN1
0.01
VA
330
B A
S2
24p
2k
9
8
7
6
5
4
3
2
1
FM GND DISCRI
2k CXA1619AM
IFT
CF1
--7--
FM/AM BAND AM SELECT IF IN FM IF IN 17 18 21 19 20 22 1 B A 0.01 0.01 IM VD VIN4 1 4.7 0.012 23 IF NC METER GND AFC AGC AFC AGC DET OUT 15 0.01 S5 B 16 AF IN 24 S6 A B S4 A A
VB
30p
Ripple FILTER VCC 25 1 26
AF OUT 27
GND 28 VE 470 5k 0.047 100 CF1 CF3 IFT OSC 0.047 8 GND VCC : AM 455kHz C.F. : FM DISCRIMINATOR : AM 455kHz IFT : AM OSC CXA1619AM/AS
S3
B
VIN3
Application Circuit 1
ANT L1 C2 18p L4 R2 10k R3 CF3 150 C3 22p C4 6p L2 C1 2p L3
RV1 50k
BPF C5 10 C7 1p 11 NC AM RF IN FM RF Reg OUT FM OSC AFC AM OSC VOL NF 10 R1 100k C8 4.7 50
14
C6 0.01 13 12
9
8
7 6 3
5
4
2
1
FM/AM FE FM FE OUT GND RF IN
FM GND DISCRI S2
--8--
CXA1619AM FM IF IN 17 18 19 20 21 22 23 24 IF NC METER GND AFC AGC AFC AGC DET OUT AF IN 15 16 25 C15 0.47 50V CF1 R5 330 CF2 C12 10 50V R6 1k C13 10 50V C14 4.7 50V R7 D1 C16 0.022 C17 10 50V C19 0.1
FM/AM BAND AM SELECT IF IN
Ripple FILTER VCC 26
AF OUT 27
GND 28
EPJ
S1
C11 100p
T1
FM
BATT
R4 2.2k
AM
C10 0.01
C18 470 6.3V
C20 0.1
C21 220 10V
CXA1619AM/AS
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
Application Circuit 2
ANT L1 C2 18p L4 R2 10k R3 CF3 150 C3 22p C4 6p L2 C1 2p L3
RV1 50k
BPF C5 10 C7 1p 12 NC AM RF IN FM RF Reg OUT FM OSC AFC AM OSC VOL NF 11 10 R1 100k C8 4.7 50
15
C6 0.01 13 14
9
8
7
6
5
4
3
2
1
GND
FM/AM FE FM FE OUT GND RF IN
FM GND DISCRI
--9--
CXA1619AS FM IF IN 18 19 20 21 22 23 24 25 IF NC METER GND AFC AGC AFC AGC DET OUT AF IN Ripple FILTER VCC 26 C15 0.47 50V CF1 R5 330 CF2 C12 10 50V C13 10 50V R6 1k C14 4.7 50V R7 D1 C16 0.022 C17 10 50V 27 C19 0.1 16 17
S2
FM/AM BAND AM SELECT IF IN
AF OUT 28
GND 29
GND 30
EPJ
S1
C11 100p
T1
FM
BATT
R4 2.2k
AM
C10 0.01
C18 470 6.3V
C20 0.1
C21 220 10V
CXA1619AM/AS
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
CXA1619AM/AS
Coil data AM OSC
S 3 2 1
Core diameter o 0.06 mm 2UEW
4 5 6
f (kHz) 796
L (H) 1 to 3 270
QO 1 to 3 125
Number of widings (t) 1 to 3 4 to 6 107 29
Equivalent to L-5K7-H5 R12-1684X. Mitsumi Electric Co., Ltd. or 7TRS-8441X TOKO Co., Ltd. AM IFT
3 2 1 S
Core diameter o 0.07 mm UEW
4 5 6
CO (pF) 1 to 3 180
QO 1 to 3 90
Number of widings (t) 1 to 2 2 to 3 4 to 6 111 35 7
Equivalent to 21K7-H5 R12-8558A. Mitsumi Electric Co., Ltd. or 7MC-7789N TOKO Co., Ltd. FM RF
4mm 0.6mm 4.5t
FM OSC
4mm 0.6mm 3.5t
AM bar antenna f (kHz) 796 L (H) 650 Primary 91 t Secondary 20 t
Primary
Secondary
BPF
PFWE8 (88 to 108 MHz) SFU-455B SFE10.7MA5 CDA10.7MC1
Soshin Electric Co., Ltd. Murata Mfg. Co., Ltd. Or BFCFL-455 TOKO Co., Ltd. Murata Mfg. Co., Ltd. Murata Mfg. Co., Ltd. --10--
CF1 CF2 CF3
CXA1619AM/AS
Package Outline CXA1619AM
Unit : mm
28PIN SOP (PLASTIC)
+ 0.4 18.8 - 0.1 28 15
+ 0.4 2.3 - 0.15
0.15 + 0.2 0.1 - 0.05
+ 0.3 7.6 - 0.1
10.3 0.4
9.3
1 0.45 0.1
14 1.27
+ 0.1 0.2 - 0.05
0.24
M
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE SOP-28P-L04 SOP028-P-0375 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER PLATING 42/COPPER ALLOY 0.7g
CXA1619AS
30PIN SDIP (PLASTIC)
+ 0.4 26.9 - 0.1
30
16
+ 0.3 8.5 - 0.1
+ 0.1 05 0.25 - 0.
0.5 0.2
0 to 15
EPOXY RESIN SOLDER/PALLADIUM PLATING COPPER ALLOY 1.8g
1 1.778
15
0.5 MIN
+ 0.4 3.7 - 0.1
10.16
Two kinds of package surface: 1.All mat surface type. 2.All mirror surface type.
0.5 0.1 0.9 0.15
PACKAGE STRUCTURE
MOLDING COMPOUND SONY CODE EIAJ CODE JEDEC CODE SDIP-30P-01 SDIP030-P-0400 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS
NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame).
--11--
3.0 MIN

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