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Z87000 Datasheet, PDF (1/50 Pages) Zilog, Inc. – Spread Spectrum Controllers
PRELIMINARY PRODUCT SPECIFICATION
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Z87000/Z87L00
1
SPREAD SPECTRUM CONTROLLERS
FEATURES
ROM RAM* I/O
Device (KWords) (Words) Lines
Z87000
12
512
32
Z87L00
12
512
32
Note: *General-Purpose
Package
Information
84-Pin PLCC
100-Pin QFP
100-Pin QFP
s Transceiver/Controller Chip Optimized for Implement-
ation of 900 MHz Spread Spectrum Cordless Phone
– Adaptive Frequency Hopping
– Transmit Power Control
– Error Control Signaling
– Handset Power Management
– Support of 32 kbps ADPCM Speech Coding for
High Voice Quality
s DSP Core Acts as Phone Controller
– Zilog-Provided Embedded Transceiver Software to
Control Transceiver Operation and Base Station-
Handset Communications Protocol
– User-Modifiable Software Governs Phone
Features
s Transceiver Circuitry Provides Primary Cordless Phone
Communications Functions
– Digital Downconversion with Automatic Frequency
Control (AFC) Loop
– FSK Demodulator
– FSK Modulator
– Symbol Synchronizer
– Time Division Duplex (TDD) Transmit and Receive
Buffers
s On-Chip A/D and D/A to Support 10.7 MHz IF Interface
s Bus Interface to Z87010 ADPCM Processor
s Static CMOS for Low Power Consumption
s 3.0V to 3.6V, -20°C to +70°C, Z87L00
4.5V to 5.5V, -20°C to +70°C, Z87000
s 16.384 MHz Base Clock
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’s
complement static CMOS Digital Signal Processor core as
the phone and RF section controller. The Z87000’s DSP
core processor further supports control of the RF section’s
frequency synthesizer for frequency hopping and the gen-
eration of the control messages needed to coordinate in-
corporation of the phone’s handset and base station.
DS96WRL0501
PRELIMINARY
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