CS42516-CQZR Cirrus Logic Inc, CS42516-CQZR Datasheet - Page 18

• Manufacturer Part Number: CS42516-CQZR
• Description: IC,Soundcard Circuits,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

18
INT
RST
AINR-
AINR+
AINL+
AINL-
VQ
FILT+
REFGND
NC
AOUTA1 +,-
AOUTB1 +,-
AOUTA2 +,-
AOUTB2 +,-
AOUTA3 +,-
AOUTB3 +,-
VA
VARX
AGND
MUTEC
LPFLT
RXP7/GPO7
RXP6/GPO6
RXP5/GPO5
RXP4/GPO4
RXP3/GPO3
RXP2/GPO2
RXP1/GPO1
RXP0
TXP
VLS
SAI_SDOUT
RMCK
CX_SDOUT
36,37
35,34
32,33
31,30
28,29
27,26
11
12
13
14
15
16
17
18
19
20
21
22
23
24
41
25
40
38
39
42
43
44
45
46
47
48
49
50
53
54
55
56
Interrupt (Output ) - The CS42516 will generate an interrupt condition as per the Interrupt Mask register.
See
Reset ( Input ) - The device enters a low power mode and all internal registers are reset to their default
settings when low.
Differential Right Channel Analog Input ( Input ) - Signals are presented differentially to the delta-sigma
modulators via the AINR+/- pins.
Differential Left Channel Analog Input ( Input ) - Signals are presented differentially to the delta-sigma
modulators via the AINL+/- pins.
Quiescent Voltage ( Output ) - Filter connection for internal quiescent reference voltage.
Positive Voltage Reference ( Output ) - Positive reference voltage for the internal sampling circuits.
Reference Ground ( Input ) - Ground reference for the internal sampling circuits.
No Connect Pins - Do not make any connection to these pins.
Differential Analog Output ( Output ) - The full-scale differential analog output level is specified in the
Analog Characteristics specification table.
Analog Power ( Input ) - Positive power supply for the analog section.
Analog Ground ( Input ) - Ground reference. Should be connected to analog ground.
Mute Control ( Output ) - The Mute Control pin outputs high impedance following an initial power-on con-
dition or whenever the PDN bit is set to a ‘1’, forcing the codec into power-down mode. The signal will
remain in a high impedance state as long as the part is in power-down mode. The Mute Control pin goes
to the selected “active” state during reset, muting, or if the master clock to left/right clock frequency ratio
is incorrect. This pin is intended to be used as a control for external mute circuits to prevent the clicks
and pops that can occur in any single supply system. The use of external mute circuits are not manda-
tory but may be desired for designs requiring the absolute minimum in extraneous clicks and pops.
PLL Loop Filter ( Output ) - An RC network should be connected between this pin and ground.
S/PDIF Receiver Input/ General Purpose Output ( Input/Output ) - Receiver inputs for S/PDIF encoded
data. The CS42516 has an internal 8:2 multiplexer to select the active receiver port, according to the
Receiver Mode Control 2 register. These pins can also be configured as general purpose output pins,
ADC Overflow indicators or Mute Control outputs according to the RXP/General Purpose Pin Control
registers.
S/PDIF Receiver Input ( Input ) - Dedicated receiver input for S/PDIF encoded data.
S/PDIF Transmitter Output ( Output ) - S/PDIF encoded data output, mapped directly from one of the
receiver inputs as indicated by the Receiver Mode Control 2 register.
Serial Port Interface Power ( Input ) - Determines the required signal level for the serial port interfaces.
Serial Audio Interface Serial Data Output ( Output ) - Output for two’s complement serial audio PCM
data from the S/PDIF incoming stream. This pin can also be configured to transmit the output of the inter-
nal and external ADCs.
Recovered Master Clock ( Output ) - Recovered master clock output from the External Clock Reference
(OMCK, pin 59) or the PLL which is locked to the incoming S/PDIF stream or CX_LRCK.
CODEC Serial Data Output ( Output ) - Output for two’s complement serial audio data from the internal
and external ADCs.
“Interrupts” on page 40
for more details.
CS42516
DS583F1