AD1846 datasheet(4/28 Pages) AD

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AD1846

REV. A

–4–

DAC ATTENUATOR

Min

Typ

Max

Units

Step Size (0 dB to –60 dB)

1.3

1.5

1.7

(Tested at Steps 0 dB, –19.5 dB and –60 dB)

Step Size (–60 dB to –94.5 dB)*

1.0

1.5

2.0

Output Attenuation Range Span*

93.5

94.5

95.5

ANALOG OUTPUT

Min

Typ

Max

Units

Full-Scale Output Voltage

0.707

V rms

1.8

2.0

2.2

V p-p

Output Impedance*

600

Ω

External Load Impedance

Ω

Output Capacitance*

External Load Capacitance

100

VREF

2.00

2.25

2.50

VREF Current Drive

100

µA

VREF Output Impedance

Ω

Mute Attenuation of 0 dB

–80

Fundamental* (OUT)

Mute Click

5mV

(|Muted Output Minus Unmuted

Midscale DAC Output|)

SYSTEM SPECIFICATIONS

Min

Typ

Max

Units

Peak-to-Peak Frequency Response Ripple*

1.0

(Line In to Line Out)

Differential Nonlinearity*

±1

Bit

Phase Linearity Deviation*

Degrees

STATIC DIGITAL SPECIFICATIONS

Min

Max

Units

High Level Input Voltage (VIH)

Digital Inputs

2.4

(VDD) + 0.3

XTAL1/2I

2.4

(VDD) + 0.3

Low Level Input Voltage (VIL)

–0.3

0.8

High Level Output Voltage (VOH) at IOH = –2 mA

2.4

Low Level Output Voltage (VOL) at IOL = 2 mA

0.4

Input Leakage Current

–10

µA

(GO/NOGO Tested)

Output Leakage Current

–10

µA

(GO/NOGO Tested)

DIGITAL MIX ATTENUATOR

Min

Typ

Max

Units

Step Size (0 dB to –94 dB)

(Tested at Steps 0 dB, –19.5 dB)

1.0

1.5

2.0

Output Attenuation Range Span*

–93.5

95.5

*Guaranteed, not tested.

AD1846 Datasheet(PDF) 4 Page - Analog Devices

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