HMP9701 Intersil Corporation, HMP9701 Datasheet - Page 12

• Manufacturer Part Number: HMP9701
• Description: AC97 Audio Codec
• Manufacturer: Intersil Corporation

Pin Descriptions
LINE_OUT_R
MISCELLANEOUS
LINE_OUT_L
MONO_OUT
CAP1, CAP2
CAP3, CAP4
LINE_IN_R
XTL_OUT
VIDEO_R
V
CD_GND
VIDEO_L
XTL_IN
AUX_R
AFILT1
AFILT2
AFILT3
AUX_L
NAME
REFOUT
AGND
CD_R
CD_L
V
GND
V
V
REF
AA
DD
TQFP PIN
NUMBER
33, 34
39, 40
25, 38
26, 42
1, 9
4, 7
24
18
19
20
16
17
14
15
35
36
37
27
28
29
30
31
2
3
(Continued)
OUTPUT
INPUT/
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
Right Line Input. The right line-level may be selected for recording via one of the stereo ADC’s via
the Input Mux. In addition, this input can be gained/attenuated from +12dB to -34.5dB in 1.5dB
steps and then summed with right line output (LINE_OUT_R).
Left CD Audio Channel. This line-level input may be input to one of the stereo ADC’s via the Input
Mux. It can also be gained/attenuated from +12dB to -34.5dB in 1.5dB steps and then summed with
the Left Line Output (LINE_OUT_L).
CD Audio Analog Ground.
Right CD Audio Channel. This line-level input is selected for input to one of the stereo ADCs via the
Input Mux. It can also be gained/attenuated from +12dB to -34.5dB in 1.5dB steps and then
summed with the Right Line Output (LINE_OUT_R).
Left Video Input. This line-level input is driven with the left channel audio track from a video source.
The signal is selected for input to one of the stereo ADCs via the Input Mux, and it can be gained/at-
tenuated from +12dB to -34.5dB in 1.5dB steps and then summed with Left Line Output
(LINE_OUT_L).
Right Video Input. This line-level input is driven with the right channel audio track from a video
source. The signal is selected for input to one of the stereo ADCs via the Input Mux, and it can be
gained/attenuated from +12dB to -34.5dB in 1.5dB steps and then summed with Right Line Output
(LINE_OUT_R).
Left Auxiliary Input. This line-level input is input to one of the stereo ADCs via the Input Mux. It can
also be gained/attenuated from +12dB to -34.5dB in 1.5dB steps and then summed with the Left
Line Output (LINE_OUT_L).
Right Auxiliary Input. This line-level input is input to one of the stereo ADCs via the Input Mux. It
can also be gained/attenuated from +12dB to -34.5dB in 1.5dB steps and then summed with the
Right Line Output (LINE_OUT_R).
Left Line Output. This line level output is the post-mixed output for the left audio channel. The audio out-
put passes through a Master Volume block that provides attenuation from 0dB to 45dB in 1.5dB steps.
Right Line Output. This line level output is the post-mixed output for the right audio channel. The
audio output passes through a Master Volume block that provides attenuation from 0dB to 45dB in
1.5dB steps.
Mono Output. This user selectable line level output is either the post-mixed output or the micro-
phone input. The mono output passes through a Mono Volume block that provides attenuation from
0dB to 45dB in 1.5dB steps.
Voltage Reference. Nominal 2.25V reference output. Should not be used to sink or source current.
Voltage Reference Out. Nominal 2.25V reference output with 5mA drive capability. Intended a
microphone bias.
Anti-Alias Filter 1 (Left Record Channel). This pin requires a 1nF capacitor to analog ground for
proper operation.
Anti-Alias Filter 2 (Right Record Channel). This pin requires a 1nF capacitor to analog ground for
proper operation.
Anti-Alias Filter 3 (MIC Record Channel). This pin requires a 1nF capacitor to analog ground for
proper operation.
Left Channel DC Blocking CAP. For proper operation connect a 1 F capacitor between these two pins.
two pins.
24.576MHz Crystal Input. Leave this pin unconnected when using an external clock source.
24.576MHz Crystal Output. This pin may also be used to input an external 24.576MHz clock
source.
Analog Supply Voltage (5.0V).
Analog Ground.
Digital Supply Voltage (5.0V).
Digital Ground.
Right Channel DC Blocking CAP. For proper operation connect a 1 F capacitor between these
HMP9701
12
DESCRIPTION