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參數(shù)資料
| 型號(hào)： | Z87L10 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | Audio Encoder/Decoder(音頻編碼/解碼器) |
| 中文描述： | 音頻編碼器/解碼器（音頻編碼/解碼器） |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 83K |
| 代理商： | Z87L10 |
DS96WRL0601
P R E L I M I N A R Y
2-1
2
P
RELIMINARY
P
RODUCT
S
PECIFICATION
Z87010/Z87L10
A
UDIO
E
NCODER
2
/D
ECODERS
FEATURES
Hardware
I
16-Bit DSP Processor
I
3.0V to 3.6V; -20
4.5V to 5.5V, -20
°
°
to +70
to +70
°
°
C, Z87L10
C, Z87010
I
Static Architecture
I
512 Word On-Chip RAM
I
Modified Harvard Architecture
I
Direct Interface to Z87000 Frequency Hopping
Spreader/Despreader
I
Direct Interface to 8-Bit
μ
-law Telephone CODEC
I
I/O Bus (16-Bit Tristable Data, 3-Bit Address)
I
Wait State Generator
I
Two External Interrupts
I
Four Separate I/O Pins (2 Input, 2 Output)
Software
I
Full Duplex 32 Kbps ADPCM Encoding/Decoding
I
Single Tone and DTMF Signal Generation
I
Sidetone, Volume Control, Mute Functions
I
Large Phone Number Memory (21 numbers of 23 digits
each)
I
Master-Slave Protocol Interface to Z87000 Spreader/-
Despreader
GENERAL DESCRIPTION
The Z87010/Z87L10 is a second generation CMOS Digital
Signal Processor (DSP) that has been ROM-coded by
Zilog to provide full-duplex 32 Kbps, Adaptive Delta Pulse
Code Modulation (ADPCM) speech coding/decoding (CO-
DEC), and interface to the Z87000/Z87L00 Spread Spec-
trum Cordless Telephone Controller. Together the
Z87000/Z87L00 and Z87010/Z87L10 devices support the
implementation of a 900 MHz frequency-hopping spread
spectrum cordless telephone in conformance with United
States FCC regulations for unlicensed operation.
The Z87010 and Z87L10 are distinct 5V and 3.3V versions
of the ADPCM Audio Encoder/Decoder. For the sake of
brevity, all subsequent references to the Z87010 in this
document also are applicable to the Z87L10, unless spe-
cifically noted.
The Z87010’s single cycle instruction execution and Har-
vard bus structure promote efficient algorithm execution.
The processor contains a 4K word program ROM and 512
word data RAM. Six dual operand fetching. Three vectored
interrupts are complemented by a six level stack. The CO-
DEC interface enables high-speed transfer rate to accom-
modate digital audio and voice data. A dedicated
Counter/Timer provides the necessary timing signals for
the CODEC interface. An additional 13-bit timer is dedicat-
ed for general-purpose use.
The Z87010’s circuitry is optimized to accommodate intri-
cate signal processing algorithms and is used here for
speech compression/decompression, generation of DTMF
tones and other cordless telephone functions. Dedicated
hardware allows direct interface to a variety of CODEC
Device
Z87010
ROM
(Kbyte)
4
I/O
Lines
16
Package
Information
44-Pin PLCC
44-Pin QFP
44-Pin QFP
Z87L10
4
16
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