IDTSTAC9753AXNAED1XR IDT, Integrated Device Technology Inc, IDTSTAC9753AXNAED1XR Datasheet - Page 17

• Manufacturer Part Number: IDTSTAC9753AXNAED1XR
• Description: IC CODEC AC'97 MIC/JACK 32-QFN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9753AXNAED1XR

• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 92
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3.135V
• Single Supply Voltage (max): 3.465/5.25V
• Package Type: VFQFPN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9753AXNAED1XR

IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
2.2.3.
2.2.4.
BIT_CLK frequency
BIT_CLK period
BIT_CLK output jitter
BLT_CLK high pulse width (Note 1)
BIT_CLK low pulse width (Note 1)
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
Note:
XTL_OUT Pin Config
BIT_CLK
short to ground
short to ground
S Y N C
XTAL or open
XTAL or open
XTAL or open
Clocks
STAC9752A/9753A Crystal Elimination Circuit and Clock Frequencies
The STAC9752A/9753A supports several clock frequency inputs as described in the following table.
In general, when a 24.576MHz crystal is not used, the XTALOUT pin should be tied to ground. This
short to ground configures the part into an alternate clock mode and enables an on board PLL.
CODEC Modes:
1.
XTAL
P = The STAC9752A/9753A as a Primary CODEC
S = The STAC9752A/9753A as a Secondary CODEC.
Worst case duty cycle restricted to 45/55.
Parameter
CID1 Pin Config CID0 pin config
pulldown
pulldown
Tsync_high
float
float
float
float
Tclk_high
Figure 4. Clocks Timing
Table 1. Clock mode configuration
17
Tclk_period
pulldown
pulldown
pulldown
float
float
float
Tsync_period
Tsync_period
Tclk_period
Tsync_high
Tsync_low
14.31818MHz source
Tclk_high
Tclk_low
Clock Source Input
Symbol
12.288MHz bit clk
12.288MHz bit clk
12.288MHz bit clk
Tclk_low
24.576MHz xtal
27MHz source
Tsync_low
STAC9752A/9753A
Min
36
36
-
-
-
-
-
-
-
12.288
CODEC Mode
81.4
40.7
40.7
48.0
20.8
19.5
Typ
750
1.3
P
S
S
S
P
P
Max
45
45
-
-
-
-
-
-
-
PC AUDIO
CODEC
V 1.5 1206
Units
MHz
KHz
ID
ns
ps
ns
ns
0
1
2
3
0
0
s
s
s