CS47048 datasheet(29/34 Pages) CIRRUS

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CS47048 Data Sheet

Audio SOC Processor Family

DS787A7

Figure 14. DAC Differential Output Test Circuit

Figure 15. Maximum Loading

5.17.3 Combined DAC Interpolation & On-chip Analog Filter Response

Parameter

Min

Typ

Max

Unit

Passband (Frequency Response)

to 0.22 dB corner

to -3 dB corner

0.4125

0.4979

Frequency Response 10 Hz to 20 kHz

-0.02

+0.02

StopBand

0.5465

StopBand Attenuation

100

Group Delay

10/Fs

N output: RL = 4.87k + ( [2

πF*1800-12 ]-1|| ((2.43k + [2πF*470-12 ]-1 ) || 4.87k ))

AOUT

AOUT_x+

AOUT_x-

1.96k

4700pF

1200pF

22µF

953

4.87k

2.43k

560

1800pF

470pF

4.87k

22µF

P output: RL = 1.96k + ( [2

πF*4700-12 ]-1|| (1.96k + [2πF*22-6 ]-1 ) || (953 + [2πF*1200-12 ]-1 ))

10k

100

2.5

510

Safe Operating

Region

Resistive Load -- R

Ω )

125

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