STW5094AD 데이터 시트보기 (PDF) - STMicroelectronics

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STW5094AD

18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

STMicroelectronics 

STw5094A

VOICE CODEC ENVELOPE DELAY DISTORTION WITH FREQUENCY

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

DXA Tx Delay, Absolute

f = 1600 Hz

320

µs

DXR Tx Delay, Relative

f = 500 - 600 Hz

f = 600 - 800 Hz

f = 800 - 1000 Hz

f = 1000 - 1600 Hz

f = 1600 - 2600 Hz

f = 2600 - 2800 Hz

f = 2800 - 3000 Hz

290

µs

180

µs

50

µs

20

µs

55

µs

80

µs

180

µs

DRA Rx Delay, Absolute

f = 1600 Hz

280

µs

DRR Rx Delay, Relative

f = 500 - 600 Hz

f = 600 - 800 Hz

f = 800 - 1000 Hz

f = 1000 - 1600 Hz

f = 1600 - 2600 Hz

f = 2600 - 2800 Hz

f = 2800 - 3000 Hz

200

µs

110

µs

50

µs

20

µs

65

µs

100

µs

220

µs

VOICE CODEC NOISE

Symbol

Parameter

Test Condition

NXP Tx Noise, P weighted (up to 35dB) VMIC = 0V, DE = 0

NRP

Rx Noise, C-message weighted

8Ω Load

(gain for max. undistorted output

level)

Receive PCM code = Zero, SI = 0,

RTE = 0 and

LSA=’0100’ (gain -2dB)

PSRTX PSRR, Tx

MIC = 0V,

VCC = 3.0 VDC + 50 mVRMS;

f = 100Hz to 50kHz

PSRRX PSRR, Rx

PCM Code equals Positive Zero,

VCC = 3.0VDC + 50 mVRMS

f = 100 Hz - 4 kHz

f = 4 kHz - 50 kHz

SOS

Spurious Out-Band signal at the

output

Digital filter characteristics

4600 Hz - 5600 Hz

5600 Hz - 7600 Hz

7600 Hz - 8400 Hz

(*) 300 to 3400Hz bandwidth

Min.

30

30

30

Typ.

-75

30

Max. Unit

-70 dBm0p

50 µVRMS

dB

dB

dB

-40

dB

-50

dB

-50

dB

VOICE CODEC CROSSTALK

Symbol

Parameter

CTX-R Transmit to Receive

CTR-X Receive to Transmit

Test Condition

Transmit Level = 0 dBm0,

f = 300 - 3400 Hz

DR = Quiet PCM Code

Receive Level = -6 dBm0,

f = 300 - 3400 Hz

MIC = 0V

Min. Typ. Max. Unit

-100 -65

dB

-80

-65

dB

40/51

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