UPC2539 [NEC]
RDS DATA DEMODULATOR IC; RDS数据解调器IC
| 型号： | UPC2539 |
| 厂家： | 
NEC |
| 描述： | RDS DATA DEMODULATOR IC |
| 文件： | 总8页 (文件大小：67K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRELIMINARY DATA SHEET
Bi-CMOS INTEGRATED CIRCUIT
µPC2539
RDS DATA DEMODULATOR IC
The µPC2539 is data demodulator IC for FM receiver applying to Radio Data System in European countries and
Radio Broadcasting Data System in USA.
This IC carries out to extract 57kHz RDS signal from FM multiplex signal, demodulate data-stream, recover
bit-rate-clock, and discriminate SK signal in ARI system.
FEATURES
•
•
•
•
•
Adjustment-free
Built-in 57kHz band-pass-filter consist of switched capactiors.
High sensitivity.
Employing digital PLL.
Small outline plastic package
ORDERING INFORMATION
Part Number
Package
24-pin plastic SOP (300 mil)
µPC2539GS
BLOCK DIAGRAM
24
23
22
21
20
19
18
17
16
15
14
13
57kHz BPF
COSTAS
SK DET
BIPHASE
DECODER
DIFFERENTIAL
DECODER
CLOCK
RECOVERY
OSC
1
2
3
4
5
6
7
8
9
10
11
12
The information in this document is subject to change without notice.
Document No. S11570EJ1V0DS00 (1st edition)
Date Published May 1996 P
Printed in Japan
1996
©
µPC2539
PIN CONFIGURATION (Top View)
V
DD
1
2
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
TEST1
TEST2
TEST9
TEST8
TEST7
BPF IN
REF
3
CLK OUT
DATA OUT
RDS IND
SK IND
4
5
6
7
BPF OUT
DSB IN
AGND
TEST3
8
TEST4
9
DGND
10
11
12
OP. CTL
TEST6
TEST5
OSC IN
OSC OUT
2
µPC2539
PIN FUNCTIONS
Pin no.
Pin name
Function
1
2
3
4
5
6
VDD
Power Supply for Digital Circuit
TEST1
Pin for Test : Normally connect to GND.
Pin for Test : Normally be open.
Bit-Rate-Clock Output Pin
TEST2
CLK OUT
DATA OUT
RDS IND
RDS Data Output Pin
RDS Idenrification Indicator : When RDS signal is detected, the output voltage becomes
to Low level.
7
SK IND
SK Identification Indicator : When SK signal is detected, the output voltage becomes to
Low level.
8
9
TEST3
TEST4
DGND
OSC IN
OSC OUT
TEST5
TEST6
OP.CTL
AGND
Pin for Test : Normally connect to GND.
Pin for Test : Normally connect to GND.
GND for Digital Circuit
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Oscillator Input Pin
Oscillator Output Pin
Pin for Test : Normally be open.
Pin for Test : Normally connect to GND.
Operation/Stop control Pin : High:Operation mode, Low:Stop mode
GND for Analog Circuit
DSB IN
BPF OUT
REF
DSB Demodulator Input Pin
Band-Pass-Filter Output Pin
Reference Voltage for BPF
BPF IN
TEST7
TEST8
TEST9
VCC
Band-Pass-Filter Input Pin
Pin for Test : Normally connect to GND.
Pin for Test : Normally connect to GND.
Pin for Test : Normally connect to GND.
Power Supply for Analog Circuit
3
µPC2539
ELECTRICAL SPECIFICATIONS (PRELIMINARY)
ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, TA=25°C)
Parameter
Supply voltage
Symbol
VCC
Conditions
VCC pin, VDD pin
TA=85°C
Ratings
7.0
Unit
V
Power dissipation
Pd
280
mW
°C
Operating ambient temperature
Storage temperature
Topt
Tstg
–30 to +85
–40 to +125
°C
Caution Exposure to Absolute Macimum Rating for extended periods may affect device reliability;
exceeding the ratings could cause permanent damage. The parameters apply independently.
RECOMMENDED OPERATING CONDITIONS
Parameter
Sypply voltage
Symbol
VCC
Conditions
VCC pin, VDD pin
MONO, ∆f=75kHz
MIN.
4.5
TYP.
5.0
MAX.
5.5
Unit
V
FM Demoulation Signal
Input Voltage
Vin
280
mVrms
ELECTRICAL CHARACTERISTICS (Unliss otherwise specified, TA=25°C, VCC=VDD=5.0V)
Parameter
Circuit current
Symbol
ICC
Conditions
MIN.
10
TYP.
15
MAX.
20
Unit
mA
mVrms
mVrms
mVrms
bit
No Signal
SK ONLY
SK ONLY
SK Detection Sensitivity(ON)
SK Detection Sensitivity(OFF)
RDS Detection Sensitivity
SK Lock Up Time
Ssk1
Ssk2
Srds
Tsk
2.5
1.0
0.1
12
3.5
4.5
3.0
0.6
20
2.0
RDS ONLY, DATA(101010..)
SK ONLY, Vsk=10mVrms
RDS ONLY
0.2
16
RDS Lock Up Time 1
Trds1
Trds2
VOH
10
40
80
bit
RDS Lock Up Time 2
RDS+SK, Vsk=10mVrms
Io=±100µA, Pin 4, 5, 6
Io=±5µA, Pin 7
20
50
100
–
bit
Output Voltage(H Level)
4.90
4.90
–
4.95
4.95
0.05
0.05
V
–
V
Output Voltage(L Level)
VOL
Io=±100µA, Pin 4, 5, 6
Io=±5µA, Pin 7
0.10
0.10
V
–
V
Band-Pass-Filter Characteristics
Peak Gain
Av
BW
fin=57kHz, Vin=10mVrms
Av-3dB
22
2.8
23
75
120
25
26
–
25
3.3
27
28
3.8
31
–
dB
kHz
dB
Pass Band Width
Attenuation 1
ATT1
ATT2
Vinmax
S/N
fin=53kHz, Vin=10mVrms
fin=38kHz, Vin=10mVrms
fin=57kHz
Attenuation 2
85
dB
Maximum Input Level
Signal to Noise Ratio
Input Impedance
Output Impedance
150
30
–
mVp-p
dB
fin=57kHz, Vin=3mVrms
–
Zin
35
44
660
kΩ
Zout
300
Ω
4
µPC2539
TIMING CHART OF DATA OUTPUT AND CLOCK OUTPUT
DATA OUTPUT
(From pin5)
CLOCK OUTPUT
(From pin4)
210.5
µs
±10µ s
421.5
µs
±10µ s
210.5
µs
±10µ s
5
µPC2539
APPLICATION CIRCUIT ESAMPLE
+5V
OPERATE
STOP
V
CC=+5V
INPUT
0.1
24
µF
100 µF +
4700pF
0.1 µF
4700pF
23
22
21
20
19
18
17
16
15
14
13
57kHz BPF
COSTAS
BIPHASE
SK DET
DECODER
DIFFERENTIAL
DECODER
CLOCK
RECOVERY
OSC
1
2
3
4
5
6
7
8
9
10
11
12
4.332MHz
*2
+5V
0.1 µF
22pF
22pF
RBDS
*1
RDS
Notes 1. Pin 7 does not have ability enough to drive LED directly because of internal serial resistor (10kΩ) shown
in following figure. In application for system with no ARI signal such as RBDS in USA, pin 7 is
recommended to be connected with VDD.
2. Crystal oscillation frequency tolerance : ±100ppm
The equivalent circuit in pin 7
10k Ω
S K detector block
PLL block
7
6
µPC2539
PACKAGE DRAWING
24 PIN PLASTIC SOP (300 mil)
24
13
detail of lead end
1
12
A
H
I
J
L
B
C
N
M
M
D
NOTE
ITEM MILLIMETERS
INCHES
Each lead centerline is located within 0.12 mm (0.005 inch) of
its true position (T.P.) at maximum material condition.
A
B
C
15.54 MAX.
0.78 MAX.
1.27 (T.P.)
0.612 MAX.
0.031 MAX.
0.050 (T.P.)
+0.10
0.40
+0.004
0.016
D
–0.05
–0.003
E
F
G
H
I
0.1±0.1
1.8 MAX.
1.55
0.004±0.004
0.071 MAX.
0.061
7.7±0.3
5.6
0.303±0.012
0.220
J
1.1
0.043
+0.004
0.008
+0.10
0.20
K
L
–0.002
–0.05
+0.008
0.024
0.6±0.2
–0.009
M
N
0.12
0.10
0.005
0.004
+7°
3°
+7°
3°
P
–3°
–3°
P24GM-50-300B-4
7
µPC2539
The application circuits and their parameters are for references only and are not intended for use in actual design-in's.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this
document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customer must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
“Standard“, “Special“, and “Specific“. The Specific quality grade applies only to devices developed based on
a customer designated “quality assurance program“ for a specific application. The recommended applications
of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each
device before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices in “Standard“ unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact NEC Sales Representative in advance.
Anti-radioactive design is not implemented in this product.
M4 94.11
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