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Z87000 Datasheet

  • Z87000

  • Spread Spectrum Controllers

  • 204.74KB

  • 50頁(yè)

  • ZILOG   ZILOG

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P
RELIMINARY
P
RODUCT
S
PECIFICATION
1
Z87000/Z87L00
S
PREAD
S
PECTRUM
C
ONTROLLERS
FEATURES
Device
Z87000
Z87L00
ROM
(KWords)
12
12
RAM*
I/O
(Words) Lines
512
512
32
32
Package
Information
84-Pin PLCC
100-Pin QFP
100-Pin QFP
s
1
Transceiver Circuitry Provides Primary Cordless Phone
Communications Functions
鈥?Digital Downconversion with Automatic Frequency
Control (AFC) Loop
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
FSK Demodulator
FSK Modulator
Symbol Synchronizer
Time Division Duplex (TDD) Transmit and Receive
Buffers
Note:
*General-Purpose
s
Transceiver/Controller Chip Optimized for Implement-
ation of 900 MHz Spread Spectrum Cordless Phone
鈥?Adaptive Frequency Hopping
鈥?Transmit Power Control
鈥?Error Control Signaling
鈥?Handset Power Management
鈥?Support of 32 kbps ADPCM Speech Coding for
High Voice Quality
DSP Core Acts as Phone Controller
鈥?Zilog-Provided Embedded Transceiver Software to
Control Transceiver Operation and Base Station-
Handset Communications Protocol
鈥?User-Modi鏗乤ble Software Governs Phone
Features
s
s
s
s
On-Chip A/D and D/A to Support 10.7 MHz IF Interface
Bus Interface to Z87010 ADPCM Processor
Static CMOS for Low Power Consumption
3.0V to 3.6V, -20
擄
C to +70
擄
C, Z87L00
4.5V to 5.5V, -20
擄
C to +70
擄
C, Z87000
16.384 MHz Base Clock
s
s
GENERAL DESCRIPTION
The Z87000/Z87L00 FHSS Cordless Telephone Trans-
ceiver/Controllers are expressly designed to implement a
900 MHz frequency hopping spread spectrum cordless
telephone compliant with United States FCC regulations
for unlicensed operation. The Z87000 and Z87L00 are dis-
tinct 5V and 3.3V versions, respectively, of the device. For
the sake of brevity, all subsequent references to the
Z87000 in this document also apply to the Z87L00, unless
specifically noted.
The Z87000 supports a specific cordless phone system
design that uses frequency hopping and digital modulation
to provide extended range, high voice quality, and low sys-
tem costs.The Z87000 uses a Zilog 16-bit fixed-point two鈥檚
complement static CMOS Digital Signal Processor core as
the phone and RF section controller. The Z87000鈥檚 DSP
core processor further supports control of the RF section鈥檚
frequency synthesizer for frequency hopping and the gen-
eration of the control messages needed to coordinate in-
corporation of the phone鈥檚 handset and base station.
DS96WRL0501
PRELIMINARY
1-1

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