CX81801-83 参数 Datasheet PDF下载

CX81801-7x/8x SmartV.XX Modem Data Sheet

Table 3-14. CX20442 VC Analog Electrical Characteristics

Signal Name

M_LINE_IN,

M_MIC_IN

M_LINE_OUTP

O (DD)

Type

I (DA)

Characteristic

Input Impedance

AC Input Voltage Range

Reference Voltage

Minimum Load

Maximum Capacitive Load

Output Impedance

AC Output Voltage Range

Reference Voltage

DC Offset Voltage

Minimum Load

Maximum Capacitive Load

Output Impedance

Value

> 70K

Ω

1.1 VP-P

+1.35 VDC

300

Ω

0 µF

10

Ω

1.4 VP-P (with reference to ground and a

600

Ω

load)

+1.35 VDC

± 200 mV

300

Ω

0.01 µF

M_SPKR_OUT

O (DF)

10

Ω

AC Output Voltage Range

1.4 VP-P

Reference Voltage

+1.35 VDC

DC Offset Voltage

± 20 mV

Test Conditions unless otherwise stated: VDD = +3.3 ± 0.3 VDC; MAVDD = +3.3 ± 0.3 VDC, TA = 0°C to 70°C

Parameter

DAC to Line Driver output (600Ω load, 3dB in SCF and CTF) SNR/SDR at:

4Vp-p differential

2Vp-p differential

-10dBm differential

DAC to Speaker Driver output (150Ω load, 3dB in SCF and CTF, -6dB in

speaker driver) SNR/SDR at:

2Vp-p

1Vp-p

-10dBm

Line Input to ADC (6dB in AAF) SNR/SDR at –10 dBm

Input Leakage Current (analog inputs)

Output Leakage Current (analog outputs)

Min

Typ

88/85

82/95

72/100

Max

Units

dB

dB

88/75

82/80

72/83

80/95

-10

-10

10

10

dB

µA

µA

3-34

Conexant

102199B