CMX639 查看數據表（PDF） - CML Microsystems Plc

零件编号

产品描述 (功能)

比赛名单

CMX639

Consumer / Commercial CVSD Digital Voice Codec

CML Microsystems Plc 

CVSD Codec

CMX639

1.7.1.3 Operating Characteristics

For the following conditions unless otherwise specified:

Xtal Frequency = 1.024 MHz, Sample Clock Rate = 32 kbps, Audio Test Frequency = 820 Hz,

VDD = 3.0V to 5.5V, Tamb = - 40°C to +85°C, Audio Level 0dB ref (0dBm0) = 489mV rms.

Static Values

IDD (powersaved)

IDD (enabled) @ VDD = 3.0V

IDD (enabled) @ VDD = 5.0V

Input Logic ‘1’

Input Logic ‘0’

Output Logic ‘1’

Output Logic ‘0’

Digital Input Impedance

Logic I/O pins

Logic Input pins, Pull-up Resistor

Digital Output Impedance

Analog Input Impedance

Analog Output Impedance

Three State Output Leakage

Insertion Loss

Notes

6

6

6

Min.

70% VDD

80% VDD

Typ.

600

1.90

2.75

1.0

1

300

2

100

±4

3

0

Max.

30% VDD

20% VDD

4.0

800

Units

µA

mA

mA

V

V

V

V

MΩ

kΩ

kΩ

kΩ

Ω

µA

dB

© 2000 Consumer Microcircuits Limited

9

CMX639/2

Share Link: