參數(shù)資料
型號(hào)： RH56D-PCI
廠商： Conexant Systems, Inc.
英文描述： Host Controlled V.90/K56flex Modem device
中文描述： 主機(jī)控制V.90/K56flex調(diào)制解調(diào)器設(shè)備
文件頁(yè)數(shù)： 30/60頁(yè)
文件大?。?/td> 357K
代理商： RH56D-PCI
RH56D-PCI Modem Designer’s Guide
3-10
Conexant
1213
Conexant Proprietary Information
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Label
Pin
I/O Type
Signal Name/Description
TELEPHONE LINE (DAA)/AUDIO INTERFACE (CONTINUED)
TELOUT/NC
58
O(DF)
Telephone Handset Analog Output (R6793-12)/NC (R6793-11).
R6793-12: TELOUT is a single-ended analog output to the telephone handset speaker
interface circuit. TELOUT can drive a 300
load.
R6793-11: NC pin can be left open, or connected as for R6793-12 without signal
support.
TELIN/NC
56
I(DA)
Telephone Handset Analog Input R6793-12)/NC (R6793-11).
R6793-12: TELIN is a single-ended analog input from the telephone handset
microphone interface circuit. The input impedance is > 70k
.
R6793-11: NC pin can be left open, or connected as for R6793-12, without signal
support.
MIC_V/NC
65
I(DA)
Voice Microphone Input (R6793-12)/NC (R6793-11).
R6793-12: MIC_V is a single-ended microphone input. The input impedance is >
70k
.
R6793-11: NC pin can be left open, or connected as for R6793-12 without signal
support.
VREF
63
REF
High Voltage Reference.
Connect to VC through 10 μF (polarized, + terminal to
VREF) and 0.1 μF (ceramic) in parallel. Ensure a very close proximity between these
capacitors and VREF pin.
VC
64
REF
Low Voltage Reference.
Connect to analog ground through 10 μF (polarized, +
terminal to VC) and 0.1 μF (ceramic) in parallel. Ensure a very close proximity between
these capacitors and VC pin. Use a short path and a wide trace to AGND pin.
R6795 INTERCONNECT/NO CONNECT
SLEEPO
(GPIO15)
46
Ot12
Connect to R6795: IASLEEP.
IASLEEP
53
DI
Connect to R6795: SLEEPO.
M_CLK
95
Ot2
Connect to R6795: MCLKIN and VCLKIN. R6795-12: Connection to VCLKIN is not
required, but may be done to common board design.
M_SCLK
93
It
Connect to R6795: MSCLK.
M_STROBE
91
It
Connect to R6795: MSTROBE.
M_TXSIN
94
Ot2
Connect to R6795: MTXSIN.
M_RXOUT
92
It
Connect to R6795: MRXOUT.
M_CTRL
96
Ot2
Connect to R6795: MCTRLSIN.
MCLKIN
73
IA
Connect to R6795: M_CLK.
MSCLK
75
OA
Connect to R6795: M_SCLK.
MSTROBE
77
OA
Connect to R6795: M_STROBE.
MTXSIN
74
IA
Connect to R6795: M_TXSIN.
MRXOUT
76
OA
Connect to R6795: M_RXOUT.
MCTRLSIN
72
IA
Connect to R6795: M_CTRL.
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