RP144D datasheet(6/18 Pages) CONEXANT

Part #	RP144D

Description	Low Voltage V.90/ K56flex / V.34/ v.32bis Modem Data Pumps for Desktop Applications

Download	18 Pages

Scroll/Zoom	100%

Manufacturer	CONEXANT [Synaptics Incorporated.]

Direct Link	https://www.synaptics.com/

Logo

6 / 18 page

53'53'DQG53'

/RZ9ROWDJH9.IOH[99ELV0RGHP'DWD3XPSV

0'

Echo Canceller

A data echo canceller with near-end and far-end echo

cancellation is included for 2-wire full-duplex

V.34/V.32 bis/V.32 operation. The combined echo span of

near and far cancellers can be up to 40 ms. The

proportion allotted to each end is automatically

determined by the MDP. The delay between near-end and

far-end echoes can be up to 1.2 seconds.

V.90 and K56flex echo cancellation is also provided.

ADPCM Voice Mode

The Adaptive Differential Pulse Code Modulation

(ADPCM) voice coder and decoder (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.

Transmit Voice. 16-bit compressed transmit voice can be

sent to the MDP ADPCM codec for decompression then to

the digital-to-analog converter (DAC) by the host.

Receive Voice. 16-bit received voice samples from the

MDP analog-to-digital converter (ADC) can be sent to the

ADPCM codec for compression, and then be read by the

host.

Voice Pass-Through Mode

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.

Transmit Voice. Transmit voice samples can be sent to

the MDP DAC from the host.

Receive Voice. Received voice samples from the MDP

ADC can be read by the host.

Speakerphone Voice/Audio Paths (SP Models)

The MDP incorporates a dual integrated analog interface.

The voice/audio transmit and receive signals can be

routed through several paths. The voice/audio paths are

available in the speakerphone mode configuration and are

selected through DSP RAM.

The voice/audio input can be taken from one of four

different sources: telephone line input (RIN), handset

(TELIN), microphone (MICM or MICV).

The speaker output (SPK) can originate from one of five

different sources: RIN, TELIN, MICM or MICV or from the

MDP’s internal voice playback mode.

The voice/audio output may be routed to the telephone

line output (TXA1 and TXA2) or handset (TELOUT).

The voice paths can be switched to allow an audio input

to be routed to the telephone line output through a

variable gain for applications such as music-on-hold.

The “room monitor” mode allows the MDP to receive

audio from its surroundings and concurrently transmit the

audio to a remote site.

AudioSpan Mode (SP Models)

AudioSpan provides full-duplex analog simultaneous

audio/voice and data over a single telephone line at a

data rate with audio of 4800 bps using V.61 modulation.

AudioSpan can send any type of audio waveform,

including music. Data can be sent with or without error

correction. The audio/voice interface can be in the form of

a headset, handset, or a microphone and speaker (half-

duplex speakerphone). Handset echo cancellation is

provided.

Data Formats

Serial Synchronous Data

Data rate:

300-56000 bps (RP56), 300-33600 bps

(RP56 and RP336), or 300-14400 bps,

±0.01%.

Selectable clock: Internal, external, or slave.

Serial Asynchronous Data

Data rate:

300-56000 bps (RP56), 300-33600 bps

(RP56 and RP336), or 300-14400 bps,

+1% (or +2.3%), -2.5%;

0-300 bps (V.21 and Bell 103);

1200/75 bps (V.23).

Bits per character: 7, 8, 9, 10, or 11.

Parallel Synchronous Data

Normal sync: 8-bit data for transmit and receive

Data rate:

300-56000 bps (RP56), 300-33600 bps

(RP56 and RP336), or 300-14400 bps,

±0.01%.

SDLC/HDLC support:

Transmitter: Flag generation, 0 bit stuffing,

CRC-16 or CRC-32 generation.

Receiver:

Flag detection, 0 bit deletion,

CRC-16 or CRC-32 checking.

Parallel Asynchronous Data

Data rate:

300-56000 bps (RP56), 300-33600 bps

(RP56 and RP336), or 300-14400 bps,

+1% (or 2.3%), -2.5%;

1200, 300, or 75 bps (FSK).

Data bits per character: 5, 6, 7, or 8.

Parity generation/checking: Odd, even, or 9th data bit.

Async/Sync and Sync/Async Conversion

An asynchronous-to-synchronous converter is provided in

the transmitter and a synchronous-to-asynchronous

converter is provided in the receiver. The converters

operate in both serial and parallel modes. The

asynchronous character format is 1 start bit, 5 to 8 data

bits, an optional parity bit, and 1 or 2 stop bits. Valid

character size, including all bits, is 7, 8, 9, 10, or 11 bits

per character. Two ranges of signaling rates are provided:

• Basic range: +1% to –2.5%

• Extended overspeed range: +2.3% to –2.5%

Similar Part No. - RP144D

Manufacturer	Part #	Datasheet	Description
Synaptics Incorporated.	RP144LD	286Kb / 24P	LOW VOLTAGE V.90/K56FLEX V.34/V.32 BIS MODEM DATA PUMPS FOR LOW POWER APPLICATIONS

More results

Similar Description - RP144D

Manufacturer	Part #	Datasheet	Description
Synaptics Incorporated.	RP56LD	286Kb / 24P	LOW VOLTAGE V.90/K56FLEX V.34/V.32 BIS MODEM DATA PUMPS FOR LOW POWER APPLICATIONS
Synaptics Incorporated.	RC56LD	194Kb / 22P	Integrated V.90/K56flex/V.34/V.32bis Modem Device Sets for Low Power Applications
List of Unclassifed Man...	RC288DPL	3Mb / 46P	V.34 Data/V.17 Fax/Voice Modem Data Pumps
Synaptics Incorporated.	RC56D-USB	171Kb / 14P	INTEGRATED V.90/K56FLEX MODEM DEVICE SETS WITH USB INTERFACE FOR DESKTOP APPLICATIONS
Synaptics Incorporated.	RH56D-PCI	199Kb / 12P	Host Controlled V.90/K56flex Modem device
List of Unclassifed Man...	RS56L-PCI	161Kb / 12P	Host-Processed V.90/K56flex?? Modem Device Family for Mobile Applications
Silicon Laboratories	SI2457	971Kb / 74P	V.90, V.34, V.32BIS, V.22BIS ISOMODEM WITH GLOBAL DAA
Silicon Laboratories	SI2456	1Mb / 86P	V.90, V.34, V.32BIS ISOMODEM??WITH INTEGRATED GLOBAL DAA
Skyworks Solutions Inc.	SI2457	1,014Kb / 60P	V.90, V.34, V.32BIS, V.22BIS ISOMODEM® WITH GLOBAL DAA Rev. 1.3
Silicon Laboratories	SI2456-FT	829Kb / 74P	V.90, V.34, V.32BIS ISOMODEM짰 CHIPSET WITH INTEGRATED GLOBAL DAA

More results

RP144D Datasheet(PDF) 6 Page - Synaptics Incorporated.

RP144D Datasheet(HTML) 6 Page - Synaptics Incorporated.

Similar Part No. - RP144D

Similar Description - RP144D

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Datasheet Download

Link URL