IDT821054PM

更新时间： 2024-01-20 18:57:46

品牌	Logo	应用领域
艾迪悌 - IDT		解码器编解码器电信集成电路电信电路 PC
页数	文件大小	规格书
45页	495K
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IDT821054PM 数据手册

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE

INDUSTRIAL TEMPERATURE RANGE

7.6

NOISE

Parameter

Description

Min.

Typ.

Max.

Units

dBrnC0

dBm0p

dBrnC0

dBm0p

Test Conditions

N_XC

N_XP

N_RC

N_RP

Transmit noise, C-message weighted for µ-law

Transmit noise, psophometrically weighted for A-law

Receive noise, C-message weighted for µ-law

Receive noise, psophometrically weighted for A-law

−70

−80

Noise, single frequency

N_RS

−53

dBm0

VIN = 0 Vrms, tested at VOUT

VDD = 5.0 VDC+100 mVrms

f = 0 kHz to 100 kHz

Power supply rejection, transmit

f = 300 Hz to 3.4 kHz

PSR_X

f = 3.4 kHz to 20 kHz

Power supply rejection, receive

VDD = 5.0 VDC+100 mVrms, PCM code is

positive one LSB

PSR_R

SOS

f = 300 Hz to 3.4 kHz

f = 3.4 kHz to 20 kHz

Spurious out-of-band signals at VOUT, relative to

input PCM code applied:

0 dBm0, 300 Hz to 3400 Hz input

f = 4.6 kHz to 20 kHz

−40

−30

f = 20 kHz to 50 kHz

7.7

INTERCHANNEL CROSSTALK

Parameter

XT_X-R

Description

Min.

Typ.

Max.

Units

Test Conditions

300 Hz to 3400 Hz, 0 dBm0 signal into VIN of the interfering

Transmit to receive crosstalk

−85

−78

−80

−78

−80

channel. Idle PCM code into the channel under test.

300 Hz to 3400 Hz, 0 dBm0 PCM code into the interfering channel.

VIN = 0 Vrms for the channel under test.

XT_R-X

XT_X-X

XT_R-R

Receive to transmit crosstalk

Transmit to transmit crosstalk

Receive to receive crosstalk

−85

300 Hz to 3400 Hz, 0 dBm0 signal into VIN of the interfering

channel. VIN = 0 Vrms for the channel under test.

300 Hz to 3400 Hz, 0 dBm0 PCM code into the interfering channel.

Idle PCM code into the channel under test.

7.8

INTRACHANNEL CROSSTALK

Parameter

Description

Min.

Typ.

−80

Max.

−70

Units

Test Conditions

300 Hz to 3400 Hz, 0 dBm0 signal into VIN. Idle PCM code into

XT_X-R

XT_R-X

Transmit to receive crosstalk

Receive to transmit crosstalk

DR.

300 Hz to 3400 Hz, 0 dBm0 PCM code into DR. VIN = 0 Vrms.

Note: Crosstalk into transmit channels (VIN) can be significantly affected by parasitic capacitive coupling from VOUT outputs. PCB layouts should be arranged to minimize the parasitics.

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