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參數資料
| 型號： | MC2800 |
| 廠商： | Motorola, Inc. |
| 英文描述： | FSK FM IF Receiver(FSK FM IF 接收器) |
| 中文描述： | FSK信號調頻（FSK信號調頻中頻接收器中頻接收機） |
| 文件頁數： | 26/28頁 |
| 文件大?。?/td> | 473K |
| 代理商： | MC2800 |
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MC2800
26
MOTOROLA RF/IF DEVICE DATA
Table 6. Interface Between the MC2800 and the MC68175
MC2800
Pin No.
MC2800
Pin Description
Interface Connector
Pin No.
MC68175
Pin No.
MC68175
Pin Description
30
D2
3
12
EXTS0
29
D1
4
11
EXTS1
2
CL
7
23
S0
1
EN
8
22
S1
4
R2
9
21
S2
3
R1
10
20
S3
12
VDD
VCC
RSSI
19
–
–
20
20
–
–
14
21
–
–
9, 18
Gnd
25
–
–
Operating Procedures
1. Connect up the circuit as shown in Figure 22.
2. Set the power supply to 1.4 V (typical value of an AA battery).
3. Set the HP8648A signal generator to the following:
FORMAT FLEX
POLARITY NORMAL
FILTER ON
ROAMING MODE
NONE
CYCLE 00 FRAME 000 PHASE A
COLLAPSE CYCLE 0
ADDRESS TYPE SHORT
ADDRESS1 2031715
PAGER CODE A0000001
DUMMY CALL OFF
IMMEDIATE STOP OFF
HEADER ON TERMINATOR ON
MODE SINGLE AMPLITUDE –110 dBm
MESSAGE NO.6 MESSAGE LENGTH 10
1234567890
VECTOR TYPE STANDARD
DATA RATE 6400/4
PAGER TYPE NUMERIC
4. Connect VDD (Pin 19 of Interface Connector) to the digital voltage supply (usually 3.0 V).
5. Connect the MC2800 to the Flex decoder MC68175 as shown in Table 6. For example, Pin 1 of MC2800 is connected to Pin
22 of MC68175 via the Interface Connector Pin 8.
6. Program the MCU such that it can generate the timing for the EN and CL Pins as shown in Figure 18.
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