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MSM7582 Evaluation Board

Oki Electric Industry Co., Ltd.

INSTRUCTION MANUAL
MSM7582 Evaluation Board
Oki Electric Industry Co., Ltd.
FIRST EDITION
ISSUE DATE: APR., 1995
MSM7582
This board is used to evaluate the MSM7582 device ( / 4 shift QPSK modem LSI). The evaluation board is provided with peripherals needed to operate the LSI, having the capability to evaluate its characteristics easily. For details of specifications and functions of the MSM7582, refer to data sheets.
1. Configuration of Evaluation Board
· Evaluation board ..................... 1 · Attached power cord .................. 1 · BNC converting connectors ............ 6
2. Circuit Diagrams of Evaluation Board
· Circuit diagram ...................... Fig. 1.1, Fig. 1.2 · Board layout ......................... Fig. 2
Supply power to the evaluation board via the attached power cord. (Red wire is for +5V, Black for GND, and Brown for +3V.) As shown in the circuit diagram, 5V power supply is for peripherals, and 3V power supply is for D.U.T. (1) Switches I Terminals A to H are used to open / close the MSM7582 signals such as PDN0, PDN1, PDN2, SLS1, SLS2, RCW, AFC, and RPR (to corresponding switches). With terminals closed, the signal can be asserted or negated by control switches N to U. With terminals open, control signals can be input directly through pins of the monitor pin B . For these in puts, HC4050 buffers are provided with that both 3V and 5V drive are capable. I Terminals I to K are used to open / close serial control register input for the MSM7582. The MSM7582 mode can be set through closed terminal by peripherals on the board. With terminals open, control signals can be input directly through the pins of monitor pin B to the serial control register input pins (DEN, EXCK, DIN). I Terminal L is used to control input to X1 in the MSM7582. Set this terminal as follows, depending on whether the oscillating circuit of the MSM7582 is used.
Used X1 "L" X1
Not used
MSM7582
I Terminal V is used to connect IFCK with X2 or not connect. During use, this terminal must be closed. I Terminal R is used to control the input of MCK (Master Clock) to the MSM7582. Set this terminal as follows.
The crystal oscillator on the board is used. MCKEN ON OFF GND M External Input MCKEN ON OFF GND M
MCK is in the "L" level. MCKEN ON OFF GND M
(2) Crystal Oscillator The MSM7582 uses a crystal oscillator depending on the input IF signal frequency. The following are frequencies used:
IF Signal Frequency 1.2MHz / 10.8MHz 10.7MHz 10.75MHz Frequency of Crystal Oscillator Not used. 19.0222MHz 19.1111MHz
(3) Setting the MSM7582 Serial Control Register Turning on the CS push button switch allows serial control register of the MSM7582 to be loaded with data set by switches A2 to A0 and B7 to B0. And each bit corresponds to each SW as follows. If SW is set upwards, the bit is set "1".
LOAD CS
For contents of the registers, refer to data sheet. 2
(4) How to Use 32 pin TSOP Socket
Position of 1 pin
MSM7582
0.1mF
OFF GND DIN
19.0222kHz or 19.1111MHz
MCKEN
N PDN0
O PDN1
P PDN2
Q SLS1
R SLS2
1 4 2 3 19.2MHz HCT244
3V 10mF + - C1 1mF + - C2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 M7582 DGND AGND IFIN SG TXCI I+ TXCO I- TXD Q+ TXW Q- DEN ENV EXCK PDN0 DIN PDN1 DOUT PDN2 MCK VDD RXD SLS1 RXC SLS2 IFCK RCW X2 AFC X1 RPR 32 pin TSOP 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 A IC Direct L 3V 5kW R1 1000pF C3 BNC Terminal Check Pin B Monitor Pin IFIN TXCI TXCO TXD TXW DEN EXCK DIN DOUT MCK RXD RXC HCT244 K
MSM7582
Fig. 1.1 MSM7582 Evaluation Board Circuit Diagram
B Monitor Pin I+ I- Q+ Q- ENV PDN0 PDN1 PDN2 SLS1 SLS2 RCW AFC RPR 3V R 2 A B C D E F G H HC4050
HC4050 V
A IC Direct
MCU GEN
5V R4 10kW R5 10kW HC00
5V HC04 HC74
5V HC161
5V HC74
1CL 1D 1CK 1PR 2CL 2D 2CK 2PR GND 14 6 10 9 8
Fig. 1.2 MSM7582 Evaluation Board Circuit Diagram
1 6 1CK 1QD 13 11 2CK 2QA
Push Button Switch
2 1CL 12 2CL 7 14 GND VCC
EXCK DEN
5V 10kW R3
HC393
HC165
MSM7582
Universal Board Area
Monitor Pin IC Direct B Pin A
74HC4050
GND PDN0 PDN1 PDN2 SLS1 SLS2 RCW AFC RPR RXC RXD MCK DOUT DIN EXCK DEN TXW TXD TXCO TXCI GND
PDN0 PDN1 PDN2 SLS1 SLS2 RCW AFC RPR
MCKEN ON OFF GND C11 C18 C9
MSM7582
19.2M
X1 C10
74HC161
A IC Direct Pin
AGND SG I+ I- Q+ Q- ENV PDN0 PDN1 PDN2 VDD SLS1 SLS2 RCW AFC RPR
32pin TSOP
X2 HC-431
DGND IFIN TXCI TXCO TXD TXW DEN EXCK DIN DOUT MCK RXD RXC IFCK X2 X1
74HC393
74HC74
Fig. 2 MSM7582 Evaluation Board Layout
74HC4050
C6 C15
74HC74
74HC4050
74HC04
C13 C7 C14
74HCT244
74HC00
74HC165 R4 R5 R3
74HC165