DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD9930
LINEAR CODEC FOR DIGITAL CELLULAR TELEPHONE
The
µ
PD9930 is a +3 V single power operation, low power consumption linear CODEC LSI developed for digital
cellular telephone use.
CODEC has a wide dynamic use.
This IC also features a microphone/receiver amplifier, a tone generator, DAI (Digital Audio Interface: conforming
to GSM11.10), and a power-saving function. These functions can be controlled by microcontroller.
In addition, 21 mW (TYP.) low power consumption is enabled during 3 V operation.
FEATURES
• +3 V single power supply
• Low power consumption
In operation: 7 mA (TYP.) (V
DD
= 3 V)
In stand-by mode: 50
µ
A (TYP.) (V
DD
= 3 V)
• CODEC
• 13-bit precision linear coding
• Transmission level can be controlled by microcontroller.
• Analog input/output funciton
• Low noise microphone amplifier
• High output receiver amplifier
Piezo-electric receiver can be directly driven.
Gain canbe controlled by microcontroller.
• On-chip amplifier for accessory input/output
• Tone generator
• Frequency, generating pattern and gain can be controlled
by microcontroller.
• DTMF generation function
• Various service tone generation function
• GSM triple tone generation function
• Desired tone frequency can be registered (0.3 to 3.4 kHz)
• DAI
• Conforming to GSM11.10
• Test mode can be set by terminal or microcontroller
command.
• Stand-by mode
• Rise time at time of stand-by clearing: 30.5 ms (TYP.)
• Master clock generation PLL (external clock input: 8 kHz)
• Tone interrupt pattern output function
• Ringer output function
ORDERING INFORMATION
Part Number
µ
PD9930G-22
Package
44-pin plastic QFP (10
×
10 mm)
The information in this document is subject to change without notice.
Document No. S11616EJ2V0DS00 (2nd edition)
(Previous No. IC-3342)
Date Published November 1996 N
Printed in Japan
The mark
shows major revised points.
©
1994,1996
NEC [ NEC ]
