AD1895_15 datasheet(2/24 Pages) AD

Numer części	AD1895

Szczegółowy opis	192 kHz Stereo Asynchronous Sample Rate Converter

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Producent	AD [Analog Devices]

Strona internetowa	http://www.analog.com

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REV. B

–2–

AD1895–SPECIFICATIONS

TEST CONDITIONS, UNLESS OTHERWISE NOTED.

Supply Voltages

VDD_CORE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 V

VDD_IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.0 V or 3.3 V

Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

°C

Input Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.0 MHz

Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . .

1.000 kHz, 0 dBFS

Measurement Bandwidth . . . . . . . . . . . . . . . . . . 20 to fS_OUT/2 Hz

Word Width

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bits

Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 pF

Input Voltage High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 V

Input Voltage Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 V

DIGITAL PERFORMANCE (VDD_CORE = 3.3 V

5%, VDD_IO = 5.0 V

10%)

Parameter

Min

Typ

Max

Unit

RESOLUTION

24

Bits

SAMPLE RATE @ MCLK_IN = 30 MHz

6

215

kHz

SAMPLE RATE (@ OTHER MASTER CLOCKS)

1

MCLK_IN/5000

≤ f

S_MAX < MCLK_IN/138

kHz

SAMPLE RATE RATIOS

Upsampling

1:8

Downsampling

7.75:1

DYNAMIC RANGE

2

(20 Hz to fS_OUT/2, 1 kHz, –60 dBFS Input) A-Weighted

44.1 kHz: 48 kHz

128

dB

48 kHz: 44.1 kHz

128

dB

48 kHz: 96 kHz

128

dB

44.1 kHz: 192 kHz

128

dB

96 kHz: 48 kHz

127

dB

192 kHz: 32 kHz

127

dB

(20 Hz to fS_OUT/2, 1 kHz, –60 dBFS Input) No Filter

44.1 kHz: 48 kHz

125

dB

48 kHz: 44.1 kHz

125

dB

48 kHz: 96 kHz

125

dB

44.1 kHz: 192 kHz

125

dB

96 kHz: 48 kHz

124

dB

192 kHz: 32 kHz

124

dB

TOTAL HARMONIC DISTORTION + NOISE

2

(20 Hz to fS_OUT/2, 1 kHz, 0 dBFS Input) No Filter

Worst-Case (48 kHz: 96 kHz)

3

–115

dB

44.1 kHz: 48 kHz

–120

dB

48 kHz: 44.1 kHz

–119

dB

48 kHz: 96 kHz

–118

dB

44.1 kHz: 192 kHz

–120

dB

96 kHz: 48 kHz

–122

dB

192 kHz: 32 kHz

–122

dB

INTERCHANNEL GAIN MISMATCH

0.0

dB

INTERCHANNEL PHASE DEVIATION

0.0

Degrees

MUTE ATTENUATION (24 BITS WORD WIDTH)(A-WEIGHT)

–127

dB

NOTES

1Lower sampling rates than those given by this formula are possible, but the jitter rejection will decrease.

2Refer to the Typical Performance Characteristics section for DNR and THD + N numbers over a wide range of input and output sample rates.

3For any other ratio, minimum THD + N will be better than –115 dB. Please refer to detailed performance plots.

Specifications subject to change without notice.

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