OKI MSM9562 Ic for fm multiplex data demodulation Datasheet

Pr
E2F0014-19-33
el
ar
in
im
This version: Mar.
1999
MSM9562
Previous version: Oct. 1998
IC for FM Multiplex Data Demodulation
GENERAL DESCRIPTION
The MSM9562 is an IC which demodulates FM character multiplex signals in the DARC (Data Radio
Channel)*1 format to obtain digital data. The MSM9562 operates at 5 V.
The MSM9562 contains on one chip a band pass filter using a switched capacitor filter (SCF) and a
group of circuits including frame memory, a frame synchronization circuit, and an error correction
circuit.
By connecting an external FM receiver and memory for temporary data storage, and microcontroller,
a system for obtaining digital data can easily be constructed.
The FM multiplex demodulation ICs, the MSM9500-series devices, are configured with minimum
functions; so they will, by changing the software of the external microcontroller, be able to respond
flexibly to the many FM multiplex broadcast services that are going to come about in the future.
The MSM9562 is best suited to radios and information processing devices that support DARC FM
multiplex broadcasting. It is also best suited to car radios and car navigation systems.
*1 DARC is a registered trademark of NHK Engineering Services.
Note that a contract needs to be made with NHK Engineering Service if a manufacturer produces/
sells electronic equipment utilizing the DARC technology.
FEATURES
• Built-in two receive channels including main channel and sub-channel
(one of two FM stations can be selected)
• Pin compatible with MSM9552/MSM9560
• Internal frame memory enables automatic error correction.
• Built-in bandpass filter (SCF)
• Built-in block synchronization circuit and frame synchronization circuit
• Setting of the number of synchronization protection steps can be changed.
• Data clocks are regenerated by digital PLL.
• 1T delay detection
• Built-in vertical and horizontal error correction circuits
• Built-in layer 4 and layer 2 CRC processing circuits
• Parallel interface with microcontroller
• Clock output for external devices (64 kHz to 8.192 MHz variable)
• Compatible with the international standard frame formats A (real time block also supported),
B, C
• Power supply: 5 V ±10%
• Package:
44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM9562GA)
1/9
y
¡ Semiconductor
MSM9562
¡ Semiconductor
Variable
gain
AMP
BPF
(SCF)
Clock
regeneration
Block
synchronization
Frame
synchronization
Timer
Timing
control
Clock
generator
¡ Semiconductor
LPF
BLOCK DIAGRAM
FM multiplex
signal input
INT
Vref
SG
Filter Section
PN
Descrambler
Receive RAM
SÆP
FRAME
memory
Error
correction
&
Layer 2 CRC
Layer 4 CRC
IC internal
clock
Data bus
Delay Detection Section
Frequency
divider
1T delay
circuit
XTAL1
CPU interface
Digital Signal Processing Section
LPF
Data
Add
RD
WR
CS
CLR
INT
2/9
MSM9562
XTAL2
Address bus
,
¡ Semiconductor
MSM9562
34 A1
35 A2
36 A3
37 A4
38 A5
39 NC
40 CLR
41 NC
42 NC
43 NC
44 NC
PIN CONFIGURATION (TOP VIEW)
MON 1
33 A0
ADETIN 2
32 XOUT
AVDD 3
31 CS
SG 5
30 XTAL2
29 XTAL1
AIN 6
28 DVDD
AGND 4
DB3 22
DB2 21
23 DB4
DB1 20
MOUT3 11
DB0 19
24 DB5
RD 18
MOUT2 10
NC 17
25 DB6
WR 16
MOUT1 9
INT 15
26 DB7
MOUT6 14
MOUT0 8
MOUT5 13
27 DGND
MOUT4 12
XOUTC 7
NC : No-connection pin
44-Pin Plastic QFP
3/9
¡ Semiconductor
MSM9562
PIN DESCRIPTIONS
Function
Microcontroller
Interface
Pin
Symbol
Type
Description
16
WR
I
Write signal to internal register.
18
RD
I
Read signal to internal register.
15
INT
O
Interrupt signal to microcontroller. "L": An interrupt is
generated.
31
CS
I
Chip select signal.
"L": Read, write, and data bus signals become active.
40
CLR
I
"L" : the internal registers are initialized and the device enters
power down mode.
33 to 38
A0 to A5
I
Address signal to internal register.
19 to 26
DB0 to DB7
I/O
Data bus signal to internal register.
Tuner
Interface
6
AIN
I
FM multiplex signal input.
5
SG
O
Analog reference voltage output pin. Connect a capacitor
between this pin and analog ground to prevent noise.
Analog
Section Test
1
MON
O
Analog section waveform monitoring pin. The analog block
mode setting is specified by the analog control register.
2
ADETIN
I
Digital signal input pin for testing analog section.
8 to 14
MOUT0 to
MOUT6
O
Digital section test signal output and monitor output pins.
29
XTAL1
I
8.192 MHz crystal connection pin.
30
XTAL2
O
8.192 MHz crystal connection pin.
32
XOUT
O
Pin for supply of 64 kHz to 8.192 MHz variable clock to the
outside.
7
XOUTC
I
XOUT output control pin.
"L" = Clock output, "H" = Output disabled. Pulled up internally.
3
AVDD
—
Analog section power supply pin.
4
AGND
—
Analog ground pin.
28
DVDD
—
Digital section power supply pin.
27
DGND
—
Digital ground pin.
Digital
Section Test
Clock
Power
Supply
4/9
¡ Semiconductor
MSM9562
ABSOLUTE MAXIMUM RATINGS
Parameter
Power Supply Voltage
Symbol
Condition
DVDD
AVDD = DVDD
Input Voltage
VI
Ta = 25°C
Output Voltage
VO
Maximum Power Dissipation
PD
Storage Temperature
Rating
AVDD
Unit
–0.3 to +7.0
V
–0.3 to AVDD + 0.3
–0.3 to DVDD + 0.3
Ta = 25°C, per package
400
Ta = 25°C, per output
50
—
–55 to +150
TSTG
mW
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply Voltage
Crystal Oscillation Frequency
FM Multiplex Signal Input
Voltage
Operating Temperature
*
Symbol
AVDD
DVDD
fXTAL
VAIN*
Top
Condition
Range
Unit
AVDD = DVDD
4.5 to 5.5
V
—
8.192 MHz ±100 ppm
—
Variable amplifier gain: ¥ 1
1.33 to 2.0
Variable amplifier gain: ¥ 1.5
1.0 to 1.32
Variable amplifier gain: ¥ 2
0.66 to 1.0
Variable amplifier gain: ¥ 3
0.5 to 0.65
—
–40 to +85
Applied Pin
AVDD
DVDD
XTAL1,
XTAL2
VP-P
AIN
°C
—
Peak values (a total voltage of the following signals (a) to (c)) of composite signals including
multiplex signals.
(a) Voice signals (100% modulated: voice max.)
(b) Pilot signal
(c) FM multiplex signals (10%: LMSK max.)
The maximum amplitude of an input signal is in the range of 2.0 VP-P in which the internal
IC circuit is not saturated.
Therefore, multiplex signals of up to 2.0 VP-P can be input if only multiplex signals (excluding
composite signals) are input from a signal generator.
5/9
¡ Semiconductor
MSM9562
ELECTRICAL CHARACTERISTICS
(DVDD = AVDD = 5 V ±10%, DGND = AGND = 0 V, Ta = –40 to +85°C)
Parameter
Symbol
Condition
When operating, no load
Supply Current
IDD
f = 8.192 MHz
When in power down mode,
no load
Min. Typ. Max. Unit Applied Pin
—
18
34
mA
—
—
50
mA
AVDD,
DVDD
BPF Pass Band Attenuation
GAIN1
72 to 80 kHz
Variable gain amplifier
gain: 0 dB
—
—
3.0
dB
MON
BPF Stop Band Attenuation
GAIN2
0 to 53 kHz
Variable gain amplifier
gain: 0 dB
50
—
—
dB
MON
BPF Stop Band Attenuation
GAIN3
100 to 500 kHz
Variable gain amplifier
gain: 0 dB
50
—
—
dB
MON
6/9
¡ Semiconductor
MSM9562
EXTERNAL CONNECTION EXAMPLE
CPU
interface
MSM9562
Tuner section
330 pF
(±10%)
1
MON
2
ADETIN
6
5
2.2 mF
(Note 1)
+
–
CLR
A5
A4
A3
A2
A1
A0
AIN
XOUT 32
31
CS
SG
XTAL2 30
(Note 3)
(Note 2)
XTAL1 29
3
2.2 mF (Note 1)
40
38
37
36
35
34
33
+
– 4
14
13
12
11
10
9
8
DVDD
28
AGND
+
–
27
DGND
MOUT6
MOUT5
MOUT4
MOUT3
MOUT2
MOUT1
MOUT0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
26
25
24
23
22
21
20
19
RD
WR
18
16
INT
15
AVDD
15 pF
8.192 MHz crystal
15 pF
(Note 2)
2.2 mF (Note 1)
+5 V power supply input
DVDD
AVDD
(Note 2)
+
–
DGND
AGND
(Note 1)
(Note 2)
(Note 3)
Use a tantalum capacitor.
The AVDD and DVDD should have different paths, respectively.
The AGND and tuner ground should use the same ground.
7/9
¡ Semiconductor
MSM9562
APPLICATION CIRCUIT EXAMPLE
Antena
FM
tuner
8 bits
FM multiplex
data demodulation
IC
CPU
(ROM)
MSM9562
SRAM
Font
ROM
LCD control
driver
LCD display
(16 kanji characters ¥ 2 lines)
8/9
¡ Semiconductor
MSM9562
PACKAGE DIMENSIONS
(Unit : mm)
QFP44-P-910-0.80-2K
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Epoxy resin
42 alloy
Solder plating
5 mm or more
Package weight (g)
0.41 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, TQFP, LQFP, SOJ, QFJ (PLCC), SHP, and BGA are surface mount type
packages, which are very susceptible to heat in reflow mounting and humidity absorbed in
storage. Therefore, before you perform reflow mounting, contact Oki’s responsible sales person
on the product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
9/9
E2Y0002-29-11
NOTICE
1.
The information contained herein can change without notice owing to product and/or
technical improvements. Before using the product, please make sure that the information
being referred to is up-to-date.
2.
The outline of action and examples for application circuits described herein have been
chosen as an explanation for the standard action and performance of the product. When
planning to use the product, please ensure that the external conditions are reflected in the
actual circuit, assembly, and program designs.
3.
When designing your product, please use our product below the specified maximum
ratings and within the specified operating ranges including, but not limited to, operating
voltage, power dissipation, and operating temperature.
4.
Oki assumes no responsibility or liability whatsoever for any failure or unusual or
unexpected operation resulting from misuse, neglect, improper installation, repair, alteration
or accident, improper handling, or unusual physical or electrical stress including, but not
limited to, exposure to parameters beyond the specified maximum ratings or operation
outside the specified operating range.
5.
Neither indemnity against nor license of a third party’s industrial and intellectual property
right, etc. is granted by us in connection with the use of the product and/or the information
and drawings contained herein. No responsibility is assumed by us for any infringement
of a third party’s right which may result from the use thereof.
6.
The products listed in this document are intended for use in general electronics equipment
for commercial applications (e.g., office automation, communication equipment,
measurement equipment, consumer electronics, etc.). These products are not authorized
for use in any system or application that requires special or enhanced quality and reliability
characteristics nor in any system or application where the failure of such system or
application may result in the loss or damage of property, or death or injury to humans.
Such applications include, but are not limited to, traffic and automotive equipment, safety
devices, aerospace equipment, nuclear power control, medical equipment, and life-support
systems.
7.
Certain products in this document may need government approval before they can be
exported to particular countries. The purchaser assumes the responsibility of determining
the legality of export of these products and will take appropriate and necessary steps at their
own expense for these.
8.
No part of the contents cotained herein may be reprinted or reproduced without our prior
permission.
9.
MS-DOS is a registered trademark of Microsoft Corporation.
Copyright 1999 Oki Electric Industry Co., Ltd.
Printed in Japan
Similar pages