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PDF RP336D Data sheet ( Hoja de datos )
| Número de pieza | RP336D | |
| Descripción | Modem Data Pumps | |
| Fabricantes | Conexant | |
| Logotipo |  |
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Introduction
The CONEXANT™ RP56D, RP336D, and RP144D
Modem Data Pump (MDP) families support data/fax
modem, voice coding/decoding, optional full-duplex
speakerphone, and optional AudioSpan (Table 1). Low
voltage and small size support desktop applications.
Downloadable architecture allows upgrading of MDP code
from the host/DTE.
In V.90/K56flex mode (RP56), the MDP can receive data
at speeds up to 56 kbps from a digitally connected V.90-
or K56flex-compatible central site modem. These MDPs
take advantage of the PSTN which is primarily digital
except for the client modem to central office local loop and
are ideal for applications such as remote access to an
Internet service provider (ISP), on-line service, or
corporate site. The MDP can send upstream data at
speeds up to V.34 rates.
In V.34 data mode (RP56 and RC336), the MDP can
connect at the highest data rate the channel can support
from 33.6 kbps to 2400 bps with auto-fallback to V.32 bis.
In V.32 bis mode, the MDP can connect at the highest
data rate the channel can support from 14.4 kbps to 4800
bps with optional auto-fallback to lower rate modulations.
Internal HDLC support eliminates the need for an external
serial input/output (SIO) device in the DTE for products
incorporating error correction and T.30 protocols.
Voice mode includes an Adaptive Differential Pulse Code
Modulation (ADPCM) voice coder and decoder (codec).
The codec compresses and decompresses voice signals
for efficient digital storage of voice messages. The codec
operates at 28.8k, 21.6k, or 14.4k bps (4-bit, 3-bit, or 2-bit
quantization, respectively) with a 7.2 kHz or 8.0 kHz
sample rate.
A voice pass-through mode allows the host to transmit
and receive uncompressed voice samples in 16-bit linear
form at 7.2 kHz, 8.0 kHz, or 11.025 kHz sample rate, or in
8-bit A-Law/µ-Law PCM form at 8.0 kHz sample rate.
SP models support position-independent full-duplex
speakerphone (FDSP) operation using a dual internal
integrated analog circuit to interface with the telephone
line and the audio input/out (i.e., a headset, handset, or a
microphone with external speaker).
SP models also support AudioSpan (analog simultaneous
audio/voice and data) operation at a data rate of 4.8 kbps.
The MDP operates over the public switched telephone
network (PSTN) through the appropriate line termination.
Features
• Downloadable MDP code from the host/DTE
• 2-wire full-duplex
− V.90 and K56flex (RP56 models)
− V.34 (33.6 kbps) (RP56 and RP336 models)
− V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21
− Bell 212 and 103
• 2-wire half-duplex
− V.34 fax, V.17, V.33, V.29, V.27 ter, and V.21 ch 2
− Bell 208
− Short train option in V.17 and V.27 ter
• Serial synchronous and asynchronous data
• Parallel synchronous and asynchronous data
• Parallel synchronous SDLC/HDLC support
• In-band secondary channel (V.34 and V.32 bis)
• Automatic mode selection (AMS)
• Automatic rate adaption (ARA)
• Digital near-end and far-end echo cancellation
• Bulk delay for satellite transmission
• ADPCM voice mode (7.2 kHz or 8.0 kHz)
• Voice pass-through mode (7.2 kHz, 8.0 kHz, or 11.025 kHz)
• Full-duplex speakerphone (SP models)
− Acoustic and line echo cancellation
− Programmable microphone AGC
− Microphone volume selection and muting
− Speaker volume control and muting; room monitor
• AudioSpan (SP models)
− ITU-T V.61 modulation (4.8 kbps data plus audio)
− Handset, headset, or half-duplex speakerphone
• TTL and CMOS compatible DTE interface
− ITU-T V.24 (EIA/TIA-232-E) (data/control)
− Microprocessor bus (data/configuration/control)
• Dynamic range: -9 dBm to -43 dBm
• Adjustable speaker output to monitor received signal
• DMA support interrupt lines
• Transmit and receive (16+128)-byte FIFO data buffers
• NRZI encoding/decoding
• 511 pattern generation/detection
• V.8 and V.8 bis signaling
• V.13 signaling
• Diagnostic capability
− V.54 inter-DCE signaling
− V.54 local analog and remote digital loopback
• +3.3V operation with +5V tolerant inputs
− +5V analog operation
• Power consumption:
− Normal Mode = 280 mW; Sleep Mode = 53 mW
• Low profile, small footprint package
− 100-pin PQFP
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Free Datasheet http://www.datasheet4u.com/
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Automatic Mode Selection
When automatic mode selection (AMS) is enabled, the
MDP configures itself to the highest compatible data rate
supported by the remote modem (AUTO bit). Automode
operation is supported in V.90, K56flex, V.34, V.32 bis,
V.32 V.22 bis, V.22, V.21, V.23, Bell 212A, and Bell 103
modes.
Automatic Rate Adaption (ARA)
In V.90, K56flex, V.34, and V.32 bis modes, automatic
rate adaption (ARA) can be enabled to select the highest
data rate possible based on the measured eye quality
monitor (EQM) (EARC bit). This selection occurs during
handshake/retrain and rate renegotiation.
Tone Generation
The MDP can generate single or dual voice-band tones
from 0 Hz to 3600 Hz with a resolution of 0.15 Hz and an
accuracy of ± 0.01%. Tones over 3000 Hz are attenuated.
DTMF tone generation allows the MDP to operate as a
programmable DTMF dialer.
Data Encoding
The data encoding conforms to ITU-T recommendations
V.90, V.34, V.32 bis, V.32, V.17, V.33, V.29, V.27 ter,
V.22 bis, V.22, V.23, or V.21, and is compatible with Bell
208, 212A, or 103, depending on the model and selected
configuration.
RTS - CTS Response Time
The response times of CTS relative to a corresponding
transition of RTS are listed in Table 3.
Transmit Level
The transmitter output level is selectable from 0 dBm to
-15 dBm (VAA = +5V) in 1 dB steps and is accurate to
±0.5 dB when used with an external hybrid. The output
level can also be fine tuned by changing a gain constant
in MDP DSP RAM. The maximum V.34/V.32 bis/V.32
transmit level for acceptable receive performance should
not exceed -9 dBm.
Note: In V.34 mode, the transmit level may be
automatically changed during the handshake. This
automatic adjustment of the transmit level may be
disabled via a parameter in DSP RAM.
Transmitter Timing
Transmitter timing is selectable between internal
(±0.01%), external, or slave.
Scrambler/Descrambler
A self-synchronizing scrambler/descrambler is used in
accordance with the selected configuration.
Answer Tone
When the NV25 bit is a zero, the MDP generates a 2100
Hz answer tone at the beginning of the answer handshake
for 5.0 seconds (V.8) or 3.6 seconds (V.32 bis, V.32, V.22
bis, V.22, V.23, and V.21). The answer tone has 180°
phase reversals every 0.45 second to disable network
echo cancellers (V.8, V.32 bis, V.32).
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Configuration
RTS-CTS Response1
Constant Controlled
Carrier
Carrier
Turn-Off
Sequence3
V.90, K56flex, V.34,
V.32 bis, V.32
± 2 ms
N/A
N/A
V.33/V.17 Long
N/A
1393 ms2
15 ms4
V.33/V.17 Short
N/A
142 ms2
15 ms4
V.29
N/A 253 ms2 12 ms
V.27 4800 Long
N/A 708 ms2 7 ms4
V.27 4800 Short
N/A 50 ms2 7 ms4
V.27 2400 Long
N/A
943 ms2
10 ms4
V.27 2400 Short
N/A
67 ms2
10 ms4
V.22 bis, V.22,
Bell 212A
± 2 ms
270 ms
N/A
V.21
500 ms
500 ms
N/A
V.23, Bell 103
210 ms
210 ms
N/A
Notes:
1. Times listed are CTS turn-on. The CTS OFF-to-ON
response time is host programmable in DSP RAM. (Full-
duplex modes only.)
2. Add echo protector tone duration plus 20 ms when echo
protector tone is used during turn-on.
3. Turn-off sequence consists of transmission of remaining
data and scrambled ones for controlled carrier operation.
CTS turn-off is less than 2 ms for all configurations.
4. Plus 20 ms of no transmitted energy.
5. N/A = not applicable.
Receive Level
The MDP satisfies performance requirements for received
line signal levels from –9 dBm to –43 dBm measured at
the Receiver Analog (RXA) (TIP and RING) input (-15
dBm at RIN).
Note: A 6 dB pad is required between TIP and RING and
the RIN input.
Receiver Timing
The timing recovery circuit can track a frequency error in
the associated transmit timing source of ±0.035% (V.22
bis) or ±0.01% (other configurations).
Carrier Recovery
The carrier recovery circuit can track a ±7 Hz frequency
offset in the received carrier.
Clamping
Received Data (RXD) is clamped to a constant mark
whenever the Received Line Signal Detector (~RLSD) is
off. ~RLSD can be clamped off (RLSDE bit).
0'
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Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Signal Label
RESERVED
RS2
RS3
RS4
~CS
~WRITE
~READ
~RDCLK
~WKRES
SR2CLK
~RLSD
TDCLK
TXD
RESERVED
RESERVED
GND
~RES1
SR4OUT
SR3OUT
SR4IN
SR3IN
CLKOUT
SA1CLK
IA1CLK
AGND
TELIN/NC*
TELOUT/NC*
AVAA
SPK
TXA1
TXA2
VREF
VC
MICV/NC*
RIN
~RES2
MICM
SPKMD
AGND
AVDD
MCNTRLSIN
MCLKIN
MTXSIN
MSCLK
MRXOUT
MSTROBE
~RLYA
AGND
I/O Type
IA
IA
IA
IA
IA
IA
OA
IA
DI
OA
OA
IA
GND
DI
DI
DI
DI
DI
DI
DI
GND
I(DA)
O(DD)
PWR
O(DF)
O(DD)
O(DD)
REF
REF
I(DA)
I(DA)
I(DA)
OA
GND
PWR
DI
DI
DI
DI
DI
DI
OD
GND
Interface3
NC
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
DTE Serial Interface
MCU: READY/~WKRESOUT
To VSCLK (52)
DTE Serial Interface
DTE Serial Interface
DTE Serial Interface
NC
NC
DGND
PIF: ~RESET
SIF: Reset circuit
To MTXSIN (43)
To VTXSIN (53)
To MRXOUT (45)
To VRXOUT (51)
To MCLKIN (42) & VCLKIN
(54)
To MSTROBE (46)
To MSCLK (44)
Analog Ground
Line/Audio Interface
Line/Audio Interface
+5VA
Line/Audio Interface
Line/Audio Interface
Line/Audio Interface
VC through capacitors
DAA through FB; GND
through capacitors and FB
Line/Audio Interface
Line/Audio Interface
PIF: ~RESET
SIF: Reset circuit
Line/Audio Interface
Line/Audio Interface
Analog Ground
+3.3V
To SR1IO (62)
To CLKOUT (22)
To SR4OUT (18)
To IA1CLK (24)
To SR4IN (20)
To SA1CLK (23)
NC
AGND
49 GND
GND
DGND
50 VSTROBE/NC* DI To SA2CLK (59)
Notes:
1. I/O types:
IA, IB = Digital input; OA, OB = Digital output.
I(DA) = Analog input; O(DD), O(DF) = Analog output.
DI = Device interconnect.
2. NC = No external connection allowed (may have internal connection).
Pin
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Signal Label
VRXOUT/NC*
VSCLK/NC*
VTXSIN/NC*
VCLKIN/NC*
VCNTRLSIN/NC*
IASLEEP
RESERVED
RESERVED
SA2CLK
SR2IO
RESERVED
SR1IO
VDD
XTCLK
GND
RESERVED
RXD
VDD
SLEEPO
RESERVED
VGG
RESERVED
RESERVED
RESERVED
YCLK
XCLK
RESERVED
~RI
RINGD
IRQ
GND
GP00
RESERVED
RESERVED
VDD
CLKIN
NC
D0
D1
D2
D3
D4
D5
D6
D7
RS0
RS1
PLLVDD
GND
PLLGND
I/O Type
DI
DI
DI
DI
DI
DI
DI
DI
DI
PWR
IA
GND
OA
PWR
DI
REF
OA
OA
OA
IA
IA
GND
DI
PWR
I
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
IA
IA
PLL
GND
PLL
3. Interface Legend:
MDP = Modem Data Pump
DTE = Data Terminal Equipment
PIF = Parallel host interface
SIF = Serial DTE interface.
* NC on non-SP models.
Interface
To SR3IN (21)
To SR2CLK (10)
To SR3OUT (19)
To CLKOUT (22)
To SR2IO (60)
To SLEEPO (69)
NC
NC
To VSTROBE (50)
To VCNTRLSIN (55)
NC
To MCNTRLSIN (41)
+3.3V
DTE Serial Interface
DGND
NC
DTE Serial Interface
+3.3V
To IASLEEP (56)
NC
+5V
NC
NC
NC
NC
NC
NC
DTE Serial Interface
Line/Audio Interface
Host Parallel Interface
DGND
To ~RDCLK (8)
NC
NC
+3.3V
Clock Circuit
NC
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
Host Parallel Interface
To +3.3 (VDD) through 10 Ω
and to DGND through 10 µF.
DGND
DGND
0'
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