Z87001 Datasheet, PDF (1/51 Pages) Zilog, Inc. – ROMless Spread Spectrum Cordless Phone Controller

PRELIMINARY CUSTOMER PROCUREMENT SPECIFICATION
1
Z87001/Z87L01
1
ROMLESS SPREAD SPECTRUM
CORDLESS PHONE CONTROLLER
FEATURES
ROM * RAM I/O
Device (KWords) (Words) Lines
Z87001
64
Z87L01
64
512
32
512
32
Note: *Maximum accessible external ROM
Package
Information
144-Pin QFP
144-Pin QFP
s Transceiver/Controller Chip Optimized for Implement-
ation of 900 MHz Spread Spectrum Cordless Telephone
– 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 Telephone
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 Up to 64 Kw of External Program Memory Accessible by
the DSP Core
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, Z87L01
4.5V to 5.5V, -20°C to +70°C, Z87001
s 16.384 MHz Base Clock
GENERAL DESCRIPTION
The Z87001 /Z87L01 FHSS Cordless Telephone Trans-
ceiver/Controller is expressly designed to implement a 900
MHz frequency hopping spread spectrum cordless tele-
phone compliant with US FCC regulations for unlicensed
operation. The Z87001 and Z87L01 are distinct 5V and
3.3V versions, respectively, of the core device. For the
sake of brevity, all subsequent references to the Z87001 in
this document also apply to the Z87L01 unless specifically
noted.
The Z87001 is the ROMless version of the Z87000 Spread
Spectrum Controller IC. Specifically intended to facilitate
user specific software development, the Z87001 can ac-
cess up to 64 kwords of external program ROM.
The Z87001 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 Z87001 uses a Zilog 16-bit fixed-point two’s comple-
ment static CMOS Digital Signal Processor core as the
phone and RF section controller. The Z87001’s DSP core
processor further supports control of the RF section’s fre-
quency synthesizer for frequency hopping and the genera-
tion of the control messages needed to coordinate incorpo-
ration of the phone’s handset and base station. Additional
on-chip transceiver circuitry supports Frequency Shift Key-
ing modulation/demodulation and multiplexing/demulti-
DS96WRL0800
PRELIMINARY
1