CS43L42 datasheet(28/40 Pages) CIRRUS

28 / 40 page

CS43L42

DS481PP2

DIF1 and DIF0

(Stand-Alone Mode)

8 and 9

Digital Interface Format (Input) - The required relationship between the Left/Right clock,

serial clock and serial data is defined by the Digital Interface Format and the options are de-

tailed in Figures 26-29.

N.C.

No Connection - This pin has no internal connection to the device.

CP/SA

Mode Select (Input) - The Mode Select pin is used to select control port or stand-alone

mode. When high, the CS43L42 will operate in control port mode. When low, the CS43L42

will operate in stand-alone mode.

VQ_HP

Headphone Quiescent Voltage (Output) - Filter connection for internal headphone amp

quiescent reference voltage. A capacitor must be connected from VQ_HP to analog ground,

as shown in Figure 6. VQ_HP is not intended to supply external current. VQ_HP has a typ-

ical source impedance of 250 k

Ω and any current drawn from this pin will alter device per-

formance.

REF_GND

Reference Ground (Input) - Ground reference for the internal sampling circuits. Must be

connected to analog ground.

FILT+

Positive Voltage Reference (Output) - Positive reference for internal sampling circuits. An

external capacitor is required from FILT+ to analog ground, as shown in Figure 6. The rec-

ommended value will typically provide 60 dB of PSRR at 1 kHz and 40 dB of PSRR at 60 Hz.

FILT+ is not intended to supply external current. FILT+ has a typical source impedance of

250 k

Ω and any current drawn from this pin will alter device performance.

VQ_LINE

Line Out Quiescent Voltage (Output) - Filter connection for internal line amp quiescent ref-

erence voltage. A capacitor must be connected from VQ_LINE to analog ground, as shown

in Figure 6. VQ_LINE is not intended to supply external current. VQ_LINE has a typical

source impedance of 250 k

Ω and any current drawn from this pin will alter device perfor-

mance.

HP_A and HP_B

16 and 21

Headphone Outputs (Output) - The full scale analog headphone output level is specified in

the Analog Characteristics specifications table.

GND

Ground (Input) - Ground Reference. Should be connected to analog ground.

Analog Power (Input) - Analog power supply. Typically 1.8 to 3.3 VDC.

VA_LINE

Line Amp Power (Input) - Line amplifier power supply. Typically 1.8 to 3.3 VDC.

Note:

If the line outputs are not used, connect VA_LINE to VA.

VA_HP

Headphone Amp Power (Input) - Headphone amplifier power supply. Typically 0.9 to

3.3 VDC.

AOUTA and AOUTB

22 and 23

Analog Outputs (Output) - The full scale analog line output level is specified in the Analog

Characteristics specifications table.

MUTEC

Mute Control (Output) - The Mute Control pin goes high during power-up initialization, re-

set, muting, power-down or if the master clock to left/right clock frequency ratio is incorrect.

This pin is intended to be used as a control for an external mute circuit on the line outputs

to prevent the clicks and pops that can occur in any single supply system. Use of Mute Con-

trol is not mandatory but recommended for designs requiring the absolute minimum in ex-

traneous clicks and pops.

DIF1

DIF0

DESCRIPTION

FORMAT

FIGURE

I2S, up to 24-bit data

026

Left Justified, up to 24-bit data

127

Right Justified, 24-bit Data

228

Right Justified, 16-bit Data

329

Table 12. Digital Interface Format - DIF1 and DIF0 (Stand-Alone Mode)

CS43L42 датащи(PDF) 28 Page - Cirrus Logic

CS43L42 датащи(HTML) 28 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

датащи скачать

ссылки URL