EEWORLDEEWORLDEEWORLD

Part Number

Search

CM88L70CPE

Description
CMOS INTEGRATED DTMF RECEIVER, 3 VOLT VERSION
File Size474KB,8 Pages
ManufacturerCALMIRCO
Websitehttp://www.calmicro.com/
Download Datasheet View All

CM88L70CPE Overview

CMOS INTEGRATED DTMF RECEIVER, 3 VOLT VERSION

CALIFORNIA MICRO DEVICES
CM88L70/70C
CMOS INTEGRATED DTMF RECEIVER, 3 VOLT VERSION
Features
• 2.7 to 3.6 volt operating range
• Full DTMF receiver
• Less than 18mW power consumption
• Industrial temperature range
• Uses quartz crystal or ceramic resonators
• Adjustable acquisition and release times
• 18-pin DIP, 20-pin QSOP, 18-pin SOIC,
20-pin PLCC, 20-pin TSSOP
•
CM88L70
- Power down mode
- Inhibit mode
- Buffered oscillator output (OSC 3) to
drive other devices
Applications
• PCMCIA
• Portable TAD
• Mobile radio
• Remote control
• Remote data entry
• Call limiting
• Telephone answering systems
• Paging systems
Product Description
The CAMD CM88L70/70C provides full DTMF receiver capability by integrating both the bandsplit filter and digital decoder
functions into a single 18-pin DIP, SOIC, or 20-pin PLCC, TSSOP, or QSOP package. The CM88L70/70C is manufactured using
state-of-the-art CMOS process technology for low power consumption (35mW, max.) and precise data handling. The filter
section uses a switched capacitor technique for both high and low group filters and dial tone rejection. The CM88L70/70C
decoder uses digital counting techniques for the detection and decoding of all 16 DTMF tone pairs into a 4-bit code. This
DTMF receiver minimizes external component count by providing an on-chip differential input amplifier, clock generator, and
a latched three-state interface bus. The on-chip clock generator requires only a low cost TV crystal or ceramic resonator as
an external component.
Block Diagram
© 2000 California Micro Devices Corp. All rights reserved.
6/16/2000
C0451098
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
1
What to learn in vxworks development c
I am familiar with C development, but I have never developed in VxWorks. What is the difference between developing C in VxWorks and developing C in Windows or Linux? Does VxWorks use its own API or is...
hyw123456 Real-time operating system RTOS
About the power consumption configuration of LSM6DSL
I made a low-power device. When I tested the power consumption, I found that there was still about 125uA of current in sleep mode. Then I checked the cause and found that it was the power consumption ...
zf1995 MEMS sensors
Why can't I watch the MSP430 Launchpad video in TI classroom?
I use the GOOGLE browser, as shown in the figure...
hu_uuu Microcontroller MCU
PCB Design
How can I import an existing PCB shape into a newly created PCB project file? Because I need to use a board of the same shape....
dyh1229 PCB Design
Renesas Synergy S1 Series Microcontroller (MCU) R7FS1JA
Renesas Synergy S1 series microcontroller (MCU) R7FS1JA is a new product launched by Renesas. It has 48MHz Arm Cortex-M23 core, and the resources are very rich, 16bit adc, 24bit adc, 12bit DAC, "][siz...
蓝雨夜 Renesas Electronics MCUs
msp430f149 Timer A as PWM frequency problem
Could you please tell me, when a certain timer of MSP430F149, such as timer A, is used as PWM output, it can output PWM waves of different frequencies?For example: Can P1.1, P1.2, and P1.3 output PWM ...
ajungle Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 205  319  2812  1496  815  5  7  57  31  17 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号