CS5373A-ISZ Просмотр технического описания (PDF) - Cirrus Logic

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CS5373A-ISZ

Low-power, High-performance ∆Σ Modulator and Test DAC

Cirrus Logic 

CS5373A

ANALOG OUTPUT CHARACTERISTICS

Parameter

Symbol Min

Typ

Max

DAC Analog OUT± Output

Analog External Load at OUT±

(Note 9, 10)

Differential Output Impedance

Load Resistance RLOUT

50

-

-

Load Capacitance CLOUT

-

-

50

1/1 ZDIFOUT

-

1.4

-

1/2

-

10.1

-

1/4

-

7.9

-

1/8

-

5.1

-

1/16

-

3.3

-

1/32

-

2.3

-

1/64

-

1.7

-

Single-ended Output Impedance

1/1 ZSEOUT

-

0.8

-

1/2

-

7.4

-

1/4

-

9.0

-

1/8

-

9.4

-

1/16

-

9.5

-

1/32

-

9.5

-

1/64

-

9.2

-

High-Z Impedance

Crosstalk to BUF± High-Z Output

DAC Analog BUF± Output

(Note 9)

(Note 9)

HZOUT

XTOUT

-

3

-

-

-120

-

Analog External Load at BUF±

Load Resistance RLBUF

1

-

-

(Note 9)

Load Capacitance CLBUF

-

-

2

Differential Output Impedance

1/1 - 1/64 ZDIFBUF

-

6

-

Single-ended Output Impedance

1/1 - 1/32 ZSEBUF

-

3

-

(Note 11) (BUF-) 1/64

-

3

-

(Note 11) (BUF+) 1/64

-

50

-

High-Z Impedance

Crosstalk to OUT± High-Z Output

(Note 9)

(Note 9)

HZBUF

XTBUF

-

4.5

-

-

-120

-

Unit

MΩ

pF

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

MΩ

dB

kΩ

nF

Ω

Ω

MΩ

dB

Notes: 9. Guaranteed by design and/or characterization.

10. Load on the precision OUT± outputs is normally from a CS3301A / CS3302A amplifier, which has

1 GΩ/1 TΩ typical input impedance and 18 pF typical input capacitance.

11. Single-ended output impedance at 1/64 is different for BUF+ and BUF- due to the output attenuator

architecture.

DS703F1

7

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