HMP9701 데이터 시트보기 (PDF) - Intersil
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HMP9701 Datasheet PDF : 20 Pages
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Pinout
HMP9701
HMP9701 (TQFP)
TOP VIEW
VDD
XTL_IN
XTL_OUT
GND
SDATA_OUT
BIT_CLK
GND
SDATA_IN
VDD
SYNC
RESET
PC_BEEP
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
LINE_OUT_R
LINE_OUT_L
CAP2
CAP1
NC
AFILT3
AFILT2
AFILT1
VREFOUT
VREF
AGND
VAA
Pin Descriptions
NAME
TQFP PIN INPUT/
NUMBER OUTPUT
DESCRIPTION
DIGITAL I/O
RESET
11
I
RESET - This active low signal causes a HMP9701 hardware reset that will return the control/status
registers to their default conditions.
SYNC
10
I
SYNC - 48kHz sync pulse which defines the beginning of serial audio I/O frames. Note: must be
synchronous to BIT_CLK.
BIT_CLK
6
O BIT Clock - 12.288MHz serial data clock derived by dividing down 24.576MHz crystal input.
SDATA_OUT
5
I
Serial Data Out - Output bit stream that contains audio playback samples as well as control data.
This input is sampled on the falling edge of BIT_CLK.
SDATA_IN
8
O Serial Data In - Input bit stream that contains recorded audio samples as well as codec status in-
formation. Data output on the rising edge of BIT_CLK.
ANALOG I/O
PC_BEEP
12
I
PC Beep. Mono Input for PC Beep pass through to LINE_OUT. This input is attenuated from 0dB
to 45dB in 3dB steps and then summed with left and right line outputs (LINE_OUT_L,
LINE_OUT_R)
PHONE
13
I
Phone. Mono Input from telephony subsystem speaker phone (or DLP - Down Line Phone)
MIC1
21
I
Microphone Input 1. The MIC input may be either line-level or -20dB from line-level. In the latter
case, a software controlled 20dB gain block may be activated.
MIC2
22
I
Microphone Input 2. The MIC input may be either line-level or -20dB from line-level. In the latter
case, a software controlled 20dB gain block may be activated.
LINE_IN_L
23
I
Left Line Input. The left 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 left line output (LINE_OUT_L).
11
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