CS42L52 datasheet(16/82 Pages) CIRRUS

16 / 82 page

DS680F1

CS42L52

5/13/08

ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE - DNZ)

Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; All Supplies = VA; TA = -40 to

+85

°C; Sample Frequency = 48 kHz and 96 kHz; Measurement bandwidth is 20 Hz to 20 kHz; Test load RL = 10 kΩ, CL = 10 pF

for the line output (see Figure 2); Test load RL = 16 Ω, CL =10pF (see Figure 2) for the headphone output;

HPGAIN[2:0] = 011. “Required Initialization Settings” on page 37 written on power up.

See Figure 2. RL and CL reflect the recommended minimum resistance and maximum capacitance re-

quired for the internal op-amp's stability and signal integrity. In this circuit topology, CL will effectively

move the band-limiting pole of the amp in the output stage. Increasing this value beyond the recom-

mended 150 pF can cause the internal op-amp to become unstable.

VA = 2.37 - 2.63 V

VA = 1.65 - 1.89 V

Parameters (Note 6)

Min

Typ

Max

Min

Typ

Max

Unit

RL = 10 kΩ

Dynamic Range

18- to 24-Bit

A-weighted

unweighted

16-Bit

A-weighted

unweighted

Total Harmonic Distortion + Noise

18- to 24-Bit

0 dB

-20 dB

-60 dB

16-Bit

0 dB

-20 dB

-60 dB

-86

-75

-35

-86

-73

-33

-78

-27

-88

-72

-32

-88

-70

-30

-80

-24

RL = 16 Ω

Dynamic Range

18- to 24-Bit

A-weighted

unweighted

16-Bit

A-weighted

unweighted

Total Harmonic Distortion + Noise

18- to 24-Bit

0 dB

-20 dB

-60 dB

16-Bit

0 dB

-20 dB

-60 dB

-75

-35

-75

-73

-33

-67

-27

-75

-72

-32

-75

-70

-30

-67

-24

Other Characteristics for RL = 16 Ω or 10 kΩ

Output Parameters

Modulation Index (MI)

(Note 7)

Analog Gain Multiplier (G)

0.6787

0.6047

0.6787

0.6047

Full-scale Output Voltage (2•G•MI•VA)

(Note 7) Refer to the table in “Line Output Voltage Level Charac-

teristics” on page 20

Vpp

Full-scale Output Power

(Note 7) Refer to the table in “Headphone Output Power Characteristics” on

page 19

Interchannel Isolation (1 kHz)

Ω

10 k

Ω

Speaker Amp to HP Amp Isolation

Interchannel Gain Mismatch

0.1

0.25

0.1

0.25

Gain Drift

±100

ppm/°C

AC Load Resistance (RL)

(Note 8)

Ω

Load Capacitance (CL)

(Note 8)

150

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