XE3005 查看數據表（PDF） - Semtech Corporation

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产品描述 (功能)

生产厂家

XE3005

Low-Power Audio CODEC

Semtech Corporation 

XE3005/XE3006

5.3.4 DAC Dynamic Performance, load is an LC filter at 10 kHz

FSYNC = 20 kHz, MCLK = 5 MHz, for info on the LC filter see chapter 6, Application Information.

Parameter

Test Conditions

Min Typ Max Unit

SNR Signal-to-noise ratio

Bandwidth 10 kHz

72

78

dB

THD Total harmonic distortion

1⁄4 full scale

0.5

%

Dynamic range

Bandwidth 10 kHz

72

78

dB

GD Group delay

FSYNC = 20 kHz

150 µs

5.3.5 Power Supply

5.3.5.1 Regulated supply characteristics @ T = 25°C

VREF

VREG11

Parameter

reference Voltage

regulated Voltage 1.1V

Test

Conditions

Min

Typ

Max Unit

1µF capacitor

390 kΩ resistor

1.2

V

1.1

V

I_vreg11 available current

35

50

µA

R_vreg11 output impedance

1

1.5 kOhm

VREG16 regulated Voltage 1.6V

1µF capacitor 1.5

1.6

V

I_vreg16 available output current

1

mA

VREF PSRR power supply rejection ratio, input referred up to 1 kHz

60

dB

VREG11 PSRR power supply rejection ratio, input referred up to 1 kHz

60

dB

VREG16 PSRR power supply rejection ratio, input referred up to 1 kHz

40

dB

5.3.5.2 Low power mode

Stand-by mode @ VDD = 3.0V, T = 25°C

Parameter

Test Conditions

Min

Typ

Max Unit

Istb1 Supply current in standby mode

ADC off, DAC off

MCLK = 5 MHz,

28

56

µA

Istb2 Supply current in standby mode

ADC off, DAC off

MCLK = 12.2880 MHz

48

96

µA

Istb3 Supply current in standby mode

NRESET mode

MCLK = 0

20

40

µA

Stand-by mode @ VDD = 1.8V, T = 25°C

Parameter

Test Conditions

Min

Typ

Max Unit

Istb1

Istb2

Istb3

Supply current in standby mode

Supply current in standby mode

Supply current in standby mode

ADC off, DAC off

MCLK = 5 MHz,

ADC off, DAC off

MCLK = 12.2880 MHz

NRESET mode

MCLK = 0

25

50

µA

31

62

µA

16

32

µA

© Semtech 2005

www.semtech.com

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