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參數(shù)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(diào)頻（FSK信號調(diào)頻中頻接收器中頻接收機(jī)） |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 473K |
| 代理商： | MC2800 |
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Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
FSK FM IF RECEIVER
BiCMOS INTEGRATED CIRCUIT
ORDERING INFORMATION
MC2800FTA
TA = –10 to 75
°
C
LQFP–32
FTA SUFFIX
PLASTIC PACKAGE
CASE 873C
(LQFP–32)
1
Order this document by MC2800/D
32
1
MC2800 is a high performance M–ary FSK FM IF Receiver for FLEX
pagers. The circuit includes oscillator, mixer, IF amplifier, limiting IF circuitry,
RSSI, quadrature discriminator, switchable bitrate filter, peak detector and
A/D converter.
2/4 Level FSK Comparator and A/D Converter
Fully Adaptive Data Slicer
Coilless and Resonatorless Demodulator
Current Consumption: 1.5 mA Typical
Operating Voltage: VCC = 1.1 to 3.0 V, VDD = 1.1 to 3.0 V
Input Bandwidth: 75 MHz
Excellent Sensitivity: –110 dBm
Switchable Bitrate Filter up to 6400 b/s Data Rate
Start–up Time: 5.0 ms
1.0 V Regulator with Source Capability of 5.0 mA Typical
RSSI Function
Low Battery Detector
Small Package 5 x 5 32–Pin LQFP
FLEX is a trademark of Motorola, Inc.
Representative Block Diagram
This device contains 1241 active transistors.
Det.
Control
Logic
Symbol
Rate
Filter
RSSI
Low Battery
Detect
Peak
Detect
24
23
22
21
20
19
18
17
1
2
CL
3
4
R2 BRF Out BRF2
(Filter
Control)
5
6
7
8
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
90
°
1.0 V
Supply
0.9 V
Supply
Osc
Mixer
SW
IF Amp
IF Amp
RF
Pwr
Mix
In
Mix
Gnd
Mix
Out
VCC
IF1 In
Gnd
IF1 Out
EN
(Precharge
and Reset)
R1
BRF1 Det Out
Osc E
(Osc Emitter)
Osc B
(Osc Base)
Vreg 1.0 V
BD Out
D1
D2
VPk P
VPk N
Vref 0.9 V
IF2 In
RSSI
(RSSI O/P)
Bias Ref
VDD
Lim Op
(Limiter O/P)
PH Cont
Gnd
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
Motorola, Inc. 1999
Rev 0
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