View FM209_1052281.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

FM209 and FM214
9600/14400 bps MONOFAX(R) Modem Family
The ConexantTM FM209 and FM214 MONOFAX(R) modem family offers synchronous 9600 or 14400 bits per second (bps) half-duplex modems with error detection, voice and audio codecs, full-duplex speakerphone, automatic speech recognition, DTMF reception, V.23 full-duplex, Type I Caller ID and Type II Caller ID CAS detection. It has low power consumption and is housed in a single 128-pin Thin Quad Flat Pack (TQFP) device package. The modem's small size and low power consumption allow the design of compact system enclosures for use in both office and home environments. Table 1 lists the FM209/FM214 models and features.
Group 3 Facsimile Modem
The modem can operate over the public switched telephone network (PSTN) through line termination provided by a data access arrangement (DAA). The modem satisfies the requirements specified in ITU-T recommendations V.33, V.17, V.29, V.27 ter, V.21 Channel 2 (FSK), T.4, and meets the binary signaling requirements of T.30. The modem operates at 14400, 12000, 9600, 7200, 4800, 2400, or 300 bps. The modem supports the V.17 signaling rates of 14400, 12000, 9600, and 7200 bps using trellis-coded modulation (TCM). In addition, the modem supports V.27 ter and V.17 short trains. The modem can also perform HDLC framing according to T.30 at 14400, 12000, 9600, 7200, 4800, 2400, or 300 bps. A FSK flag pattern (7E) detector facilitates FSK detection during V.33, V.17, V.29, and V.27 ter reception. The modem includes a programmable single/dual tone transmitter, a programmable DTMF receiver, three programmable tone detectors (which operate concurrently with the V.21 Channel 2 receiver), and a ring detector. The transmit output level is also programmable. Voice and Audio Codecs (-V Option) The voice coder/decoder (codec) compresses voice at an average rate of 2.9 kbps or at a fixed rate of 4.7 kbps with near toll quality playback at various pitch synchronized playback speeds. An average rate of 2.9 kbps provides 24 minutes of stored voice messages in 4 Mbits of memory. This voice codec allows the host controller to efficiently store and playback digital incoming messages (ICMs) and outgoing messages (OGMs). The ADPCM audio codec compresses audio signals (music/voice) at 32 kbps or 24 kbps for highest fidelity coding and reproduction. The PCM audio codec allows the host controller to transmit and receive uncompressed audio signals.
Distinguishing Features *

- ! - "# # $# %& # - & - & - '()% * - +
, -
*. $ / 0 / - 1
, 23 - 4 * 5 *
23 - (

- %& 67 8 * (
- +*
- 9* 5 , - 9* 5 * *

:! - ,
* 5 - ; 2- ,

* -5
< - 9* 5 1% - 9* 5
& < - 8

* = 1+1 * - (
#
# - - % ( %16
- 9
& -
&3 = -5
< - ;
&
* 1(9%
:! - '*& -
* -5
< * - <5 <5 - 9* 5 1% - 9* 5
& < - (
#
# - - % ( %16
- ;
&
* 9%
- > <5 ? <5 - (

- - % ( %16
- ;
&

Data Sheet
Order No. MD205 March 31, 1998

* - - - - - - - - - - - - - * - - - - - - - - - - * - - - -
(4 6<& 6 :! 1

8
& %
)
&

-

&
9* 5
& < 1% 9* 5 <
& < ,
* 1 5
< = 4 *
9* 5 &
& & '*& * &4
(

- % ( %16
= %,
* * -5
< =&
1(9%
6 ! 1
6
& +
* + :! 6< ( 6(! 6< 6! =
* 6
5- 8*&! & ,

*# & =*
& 4
1
, =
*
5- &
6
&
&#
&# & 6 = (69 +: 6( = #
&! ;+1 = (69 +1 6 $ 1
, 6( = 6( * *

@
4
& *& 6( * +A

5- , 6 + (
#
- % ( %16
;
&

* * -5
< =&
1
!
* - % ( - 4 . - B C @ 5# +B C $$ 5 - B C $$ 5# +B C @ 5 - '4 . - B C +B C $$ 5 - 6 - 9* 5 - @# ?# # > 5 - 6 5 - <# 6
# 8,# : 9- /<
- 2
& - % 23 *
- * 8*& * 9!
*& * 9:! & * * (8
. = - 6
5
5 ?@$$ >$>@! - 8118
5!
* ) %:6
5 * @ * 9= % . - :* . - $$ D /
! - @ D !
300 mW (-VS option) - 6 . - /
! - 6 ! * 9
<** - > E9 & 2
5 =& :;:1B

Information provided by Conexant Systems, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Conexant for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Conexant other than for circuitry embodied in Conexant products. Conexant reserves the right to change circuitry at any time without notice. This document is subject to change without notice. Conexant and "What's Next in Communications Technologies" are trademarks of Conexant Systems, Inc. Product names or services listed in this publication are for identification purposes only, and may be trademarks or registered trademarks of their respective companies. All other marks mentioned herein are the property of their respective holders. (c)1999, Conexant Systems, Inc. All Rights Reserved.
2
MD205

Selectable error correction coding allows storage in audio grade RAMs (ARAMs). Echo cancellation techniques employed during playback allow DTMF, Type II Caller ID CAS detection, and tone detection during voice/audio codec operation to support user selectable features. Dual or single tone transmission is supported. The coder can record messages from either the primary or secondary IA. Speakerphone (-S Option) The full-duplex speakerphone provides hands-free telephone conversation employing acoustic and line echo cancellation and supports intercom conversation employing dual acoustic echo cancellation. The optional half-duplex speakerphone provides handfree telephone/intercom conversation with exceptional high gain. The speakerphone algorithm constantly adjusts its parameters to deliver the best performance during real-time conditions, allowing automatic fallback from full-duplex to pseudo-duplex. The host controller can easily set up the speaker mute, microphone mute, automatic gain control (AGC) enable/disable, microphone level, line level, speaker volume, tone transmit, and handset functions. Conversation recording and message playback are supported during the speakerphone operation. DTMF detection, Type II Caller ID CAS detection, and three tone detectors are also supported. Automatic Speech Recognition (-R Option) Automatic Speech Recognition (ASR) consists of Speaker Independent (SI) North American English isolated word recognition for a predefined 69 word vocabulary list, Speaker Dependent (SD) isolated word training, and SD isolated word recognition functions. V.23 Full-Duplex Modem and Caller ID Both full-duplex transmit and receive (with asymmetric 1200/75 bps connection) and half-duplex (1200 bps) asynchronous V.23 are supported, as well as both serial and parallel interfaces to the modem. The V.23 algorithm includes an optional, programmable, receive compromise equalizer which is active in both V.23 and Caller ID modes. Common applications for V.23 include France's Minitel and Japan's Lowest Cost Routing. General Purpose Output (GPO) and General Purpose Input (GPI) pins are available for host assignment. Additional design information is described in the FM209 and FM214 MONOFAX Modem Family Designer's Guide (Order Number 1175). Table 1. FM209/FM214 Models and Features
Supported Features Modem Model Maximum Line Speed Voice and Audio Codecs (-V) Full Duplex Speakerphone (-S) Automatic Speech Recognition (-R)
FM214-VSR FM214-VS FM214-V FM214 FM209-VSR FM209-VS FM209-V FM209
14.4 kbps 14.4 kbps 14.4 kbps 14.4 kbps 9.6 kbps 9.6 kbps 9.6 kbps 9.6 kbps
- --
-- ---
--- ----
MD205
3

Technical Specifications
Configurations, Symbol Rates and Data Rates The selectable modem configurations, along with the corresponding symbol (baud) rates and data rates, are listed in Table 2. Scrambler/Descrambler The modem incorporates a self-synchronizing scrambler/descrambler in accordance with ITU-T V.33, V.17, V.29, and V.27 ter recommendations, depending upon the selected configuration.
Data Encoding
Receive Dynamic Range The receiver satisfies PSTN performance requirements for received line signal levels from 0 dBm to -43 dBm measured at the Receiver Analog Input (RXA) input. An external input buffer must be supplied between RXA and LINEIN. The default values of the programmable Received Line Signal Detector (RLSD#) turn-on and turn-off threshold levels are -43 dBm and -48 dBm, respectively. The RLSD# threshold levels can be programmed over the following range: Turn on: -10 dBm to -47 dBm Turn off: -10 dBm to -52 dBm Automatic Adaptive Equalizer An adaptive equalizer in ITU-T V.33, V.17, V.29 and V.27ter modes compensates for transmission line amplitude and group delay distortion. Receiver Timing The timing recovery circuit can track a 0.01% frequency error in the associated transmit timing source. Carrier Recovery The carrier recovery circuit can track a 7 Hz frequency offset in the received carrier. Turn-off Sequence Transmitter turn-off sequence times are shown in Table 4. Clamping Received Data (RXD) is clamped to a constant mark whenever RLSD# is off. V.23 Full-Duplex Features The modem can transmit and detect Break signals (continuous Space). The Mark and Space frequencies are 1300 and 2100 Hz, respectively, for 1200 bps, and 390 and 450 Hz, respectively, for 75 bps. Additional features include an optional host programmable Receive Compromise Equalizer for V.23 1200 bps reception and Caller ID mode. Default transmitter turn-on/turn-off sequence times are 10.5 ms (RTS On to CTS On) and 2.2 ms (RTS Off to CTS Off).
The data encoding conforms to ITU-T recommendations V.33, V.17, V.29, V.27 ter, V.21 Channel 2, and V.23. Fixed Digital Cable Compromise Equalizer Compromise equalization can improve performance when operating over low quality lines. The modem has a selectable fixed digital compromise cable equalizer in the high speed receive and transmit data path. Transmitted Data Spectrum The transmitted data spectrum is shaped in the baseband by an excess bandwidth finite impulse response (FIR) filter with the following characteristics: When operating at 2400 baud, the transmitted spectrum is shaped by a square root of 20% raised cosine filter. When operating at 1600 baud, the transmitted spectrum is shaped by a square root of 50% raised cosine filter. When operating at 1200 baud, the transmitted spectrum is shaped by a square root of 90% raised cosine filter. The out-of-band transmitter energy levels in the 4 - 50 kHz frequency range are below -55.0 dBm. Transmit Level The transmitter output level is programmable in the DSP RAM from 0 dBm to -15.0 dBm and is accurate to 1.0 dB. The modem adjusts the output level by digitally scaling the output to the transmitter's digitalto-analog converter. Turn-on Sequence Transmitter turn-on sequence times are shown in Table 3.
4
MD205

Table 2. Configurations, Signaling Rates, and Data Rates
Configuration V.17/V.33 14400 V.17/V.33 12000 V.17 9600 V.17 7200 V.29 9600 V.29 7200 V.29 4800 V.27 ter 4800 V.27 ter 2400 V.21 Channel 2 300 V.23 receive HDX V.23 1200/75 Type I Caller ID Notes: 1. Modulation legend: QAM: DPSK: FSK: TCM: Quadrature Amplitude Modulation Differential Phase Shift Keying Frequency Shift Keying Trellis-Coded Modulation
2 2 2 2
Modulation TCM TCM TCM TCM QAM QAM QAM DPSK DPSK FSK FSK FSK FSK
1
Carrier Frequency (Hz) 0.01% 1700 or 1800 1700 or 1800 1700 or 1800 1700 or 1800 1700 1700 1700 1800 1800 1650, 1850 1300, 2100 1300, 2100/ 390, 450 1200, 2200
Data Rate (bps) 0.01% 14400 12000 9600 7200 9600 7200 4800 4800 2400 300 1200 1200/75 1200
Baud (Symbols/Sec.) 2400 2400 2400 2400 2400 2400 2400 1600 1200 300 1200 1200 1200
Bits /Symbol 6 5 4 3 4 3 2 3 2 1 1 1 1
Constellation Points 128 64 32 16 16 8 4 8 4 - - - -
2.
FM214 models only.
MD205
5

Table 3. Turn-On Sequence Times

The filter coefficients of each filter are host programmable in RAM. The output of the tone detector filter goes to an energy detector.

Hardware Interface
The Fax, Digital Telephone Answering Machine (DTAM), and Speakerphone hardware interface signals are shown in Figure 1, Figure 2, and Figure 3. Any point that is active when exhibiting the relatively more negative voltage of a two-voltage system (0 VDC for TTL or -12 VDC for EIA/TIA-232-E) is called active low and is represented by a small circle at the signal point. Active low signals are indicated by a pound sign (#), (RESET#). Edge-triggered clocks are indicated by a small triangle (DCLK). A small half circle denotes open-collector (opensource or open-drain) outputs (signal IRQ#).
Table 4. Turn-Off Sequence Times

!

Notes: 1. 2.

A clock intended to activate logic on its rising edge (low-to-high transition) is called active high, while a clock intended to activate logic on its falling edge (high-to-low transition) is called active low. When clock input is associated with a small circle, the input activates on a falling edge. If no circle is shown, the input activates on a rising edge. The pin assignments for the 128-pin TQFP are shown in Figure 4. General Specifications The modem power and environmental requirements are listed in Table 5 and Table 6, respectively. Table 5. Current and Power Requirements
Option Mode 3.3V 5%. VDD VDD VDD 5V 5% VGG Basic -V - VS DVAA Basic -V - VS Current (Typ.) @25C 2.5 ma 50 ma 72 ma 80 ma 5.5 ma .25 ma .30 ma .30 ma
In parallel data mode, the turn-off sequence may be extended by 8 bit times. In HDLC mode, the turn-off sequence may be extended by more than 8 bit times.
Caller ID Reception Caller ID reception (CID) allows Customer Premises Equipment (CPE) to receive a calling party's directory number which includes the date and time of the call. For Type I Caller ID this information is contained in the first 4-second silent interval in the ring cycle. For Type II Caller ID support an ACK signal is sent by the CPE in response to a CAS tone, after which the calling party information from the Stored Program Control Switching System (SPCS) can be received by the CPE. Tone Generation The modem can generate voice-band single or dual tones from 0 Hz to 4800 Hz with a resolution of 0.15 Hz and an accuracy of 0.01%. Tones over 3000 Hz are attenuated. Dual tone generation allows the modem to operate as a programmable DTMF dialer.
Tone Detectors
Note: Input Ripple 0.1 Vpeak-peak. The amplitude of any frequency between 20 kHz and 150 kHz must be less than 500 Vpeak.
Table 6. Environmental Requirements
Parameter Temperature Operating Storage Relative Humidity Specification 0C to +70C (32F to 158F) -55C to +125C (-67F to 257F) Up to 90% non-condensing, or a wet bulb temperature up to 35C, whichever is less.
All three tone detectors operate in all receive modes. The tone detectors can also operate as one 12th order filter.
6
MD205

Software Interface
Modem functions are implemented in firmware executing in the modem DSP. The DSP RAM interface memory bits, access functions, codes, and registers are defined in the Designer's Guide. Interface Memory The DSP communicates with the host processor by means of a dual-port, interface memory. This interface memory contains thirty-two 8-bit registers, labeled register 00h through 1Fh. Each register can be read or written by the host and the DSP. The host controls the modem operation by writing control bits to DSP interface memory and writing parameter values to DSP RAM through interface memory. The host monitors the modem operation by reading status bits from DSP interface memory and reading parameter values from DSP RAM through interface memory. An interface memory interrupt is provided. DSP RAM Access The DSP contains 16-bit word RAM. Because the DSP is optimized for performing complex arithmetic, the RAM is organized into real (X RAM) and imaginary (Y RAM) parts. The host processor can read or write both the X RAM and the Y RAM. DSP interface memory mediates data exchange between the host and DSP RAM. The address stored in interface memory RAM address registers by the host determines the DSP RAM address for data access.
MD205
7

TXD RXD DCLK OffHook Talk RINGD LINEOUT LINEIN TELEPHONE LINE
USART
(Optional)
RTS# CTS# RLSD#
DAA
SPKRP SPKRM
SPEAKER DRIVER
(Optional)
READ# WRITE# DATA BUS ADDR. BUS
FM209/214 MONOFAX MODEM
HOST Processor (DTE)
DECODER
CS#
RESET# IRQ1# IRQ2#
EYEXY XTLI EYECLK EYESYNC
CRYSTAL
XTLO
EYE PATTERN GENERATOR
(Optional)
+5V
+3.3V
GND
POWER SUPPLY
Figure 1. Modem Functional Interconnect Diagram (Fax)
8
MD205

TXD RXD DCLK OffHook Talk RINGD LINEOUT LINEIN
TELEPHONE LINE
USART
(Optional)
RTS# CTS# RLSD#
DAA
SPKRP SPKRM
SPEAKER DRIVER
READ# WRITE# DATA BUS ADDR. BUS
FM209/214-V MONOFAX MODEM
MICP MICM MIC BIAS
MICROPHONE AMP.
HOST Processor (DTE)
DECODER
CS#
RESET# IRQ1# IRQ2#
EYEXY XTLI EYECLK EYESYNC
CRYSTAL
XTLO
EYE PATTERN GENERATOR (Optional)
+5V
+3.3V
GND
POWER SUPPLY
Figure 2. Modem Functional Interconnect Diagram (Fax and DTAM)
MD205
9

TXD RXD DCLK OffHook Talk RINGD LINEOUT LINEIN TELEPHONE LINE
USART
(Optional)
RTS# CTS# RLSD#
DAA
SPKRP_P SPKRM_P
SPKRP_S READ# WRITE# DATA BUS ADDR. BUS SPKRM_S
SPEAKER DRIVER
FM209/214-VS MONOFAX MODEM
MICP_P MICM_P
HOST Processor (DTE)
MICP_S
DECODER
CS#
MICM_S MIC BIAS_P
MICROPHONE AMP.
RESET# IRQ1# IRQ2#
MIC BIAS_S
EYEXY EYECLK EYESYNC
XTLI
CRYSTAL
XTLO
EYE PATTERN GENERATOR (Optional)
+5V
+3.3V
GND
POWER SUPPLY
Figure 3. Modem Functional Interconnect Diagram (Fax, DTAM, and Speakerphone)
10
MD205

RESERVED AGND5 DVAA DGND6 RESERVED RESERVED SR3IN IRQ2# GPI1 XCLK RESERVED XTLO XTLI RESET# DGND5 VGG VDD5 GPO0 GPO1 GPO2 IRQ1# CTS# DGND4 GPO3 GPO4 RESERVED
SR4IN1/RESERVED2 SR3OUT1/RESERVED2 EYESYNC EYECLK RXD SR1IO NC EYEXY SR4OUT VDD1 RLSD# DCLK EN85# GPI0 RTS# DGND1 TXD SA1CLK RS4 RS3 RS2 RS1 RS0 YCLK IACLK IA1CLK CTRLSIN_S1/NC2 RESERVED1/NC2 SOUT_S1/NC2 SIN-S1/NC2 FSYNC_S1/NC2 IARESET_S#1/NC2 AGND1 LINEIN_S1/NC2 MICP_S1/NC2 MICM_S1/NC2 MICBIAS_S1/NC2 NC
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103
NC AGND2 SPKRP_S1/NC2 SPKRM _S1/NC2 AVDD _S1/NC2 RESERVED1/NC2 ICLK_S1/NC2
Notes: 1 For -S Options 2 For all other options 3 For -R Options
MD205/DG1175 128TQFP
MD205
NC VREF_S1/NC2 VC_S1/NC2 VAA_S1/NC2 LINEOUT_S1/NC2
Figure 4. Pin Signals - 128-Pin TQFP
MCLK_P CTRLSIN_P RESERVED SOUT_P SIN_P FSYNC_P IARESET_P# AGND3 NC LINEIN_P MICP_P MICM_P MICBIAS_P NC
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
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
102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
GPO5 GPO6 VDD4 GPO7 GPI7 GPI6 GPI5 GPI4 GPI3 GPI2 READ# CS# WRITE# CSBR#3/RESERVED2 D0 DGND3 D1 VDD3 DGND2 D2 D3 D4 D5 D6 D7 VDD2 MCLK_S1/NC2 ICLK_P NC AVDD_P SPKRM_P SPKRP_P AGND4 LINEOUT_P VAA_P VC_P VREF_P NC
11

literature@conexant.com 1-800-854-8099 (North America) 33-14-906-3980 (International)
) *
Phone: (852) 2827 0181 Fax: (852) 2827 6488

www.conexant.com

Phone: (91 11) 692 4780 Fax: (91 11) 692 4712
World Headquarters
Conexant Systems, Inc. 4311 Jamboree Road P. O. Box C Newport Beach, CA 92658-8902 Phone: (949) 483-4600 Fax: (949) 483-6375
*
Phone: (82 2) 565 2880 Fax: (82 2) 565 1440
Europe Headquarters
Conexant Systems France Les Taissounieres B1 1680 Route des Dolines BP 283 06905 Sophia Antipolis Cedex France Phone: (33 4) 93 00 33 35 Fax: (33 4) 93 00 33 03
!"" # $
Phone: (813) 799-8406 Fax: (813) 799-8306
!"" % $
Phone: (805) 376-0559 Fax: (805) 376-8180
+
Phone: (49 89) 829 1320 Fax: (49 89) 834 2734
!"" &'$
Phone: (215) 244-6784 Fax: (215) 244-9292
+ &
Phone: (39 02) 9317 9911 Fax: (39 02) 9317 9913
!""
Phone: (630) 773-3454 Fax: (630) 773-3907
+
Phone: (44 1344) 486 444 Fax: (44 1344) 486 555
!""
Phone: (978) 692-7660 Fax: (978) 692-8185
+
Phone: (33 1) 41 44 36 50 Fax: (33 1) 41 44 36 90
!"" (#
Phone: (408) 249-9696 Fax: (408) 249-7113
!"
Phone: (972) 773-0723 Fax: (972) 407-0639
Middle East Headquarters
Conexant Systems Commercial (Israel) Ltd. P. O. Box 12660 Herzlia 46733, Israel Phone: (972 9) 952 4064 Fax: (972 9) 951 3924
!""
Phone: (770) 246-8283 Fax: (770) 246-0018
!"" (
Phone: (949) 222-9119 Fax: (949) 222-0620
Japan Headquarters
Conexant Systems Japan Co., Ltd. Shimomoto Building 1-46-3 Hatsudai, Shibuya-ku, Tokyo 151-0061 Japan Phone: (81 3) 5371 1567 Fax: (81 3) 5371-1501
APAC Headquarters
Conexant Systems Singapore, Pte. Ltd. 1 Kim Seng Promenade Great World City #09-01 East Tower Singapore 237994 Phone: (65) 737 7355 Fax: (65) 737 9077
Taiwan Headquarters
Conexant Systems, Taiwan Co., Ltd. Room 2808, 333 International Trade Building Keelung Road, Section 1 Taipei 110, Taiwan, ROC Phone: (886 2) 2720 0282 Fax: (886 2) 2757 6760
$
Phone: (61 2) 9869 4088 Fax: (61 2) 9869 4077

Phone: (86 2) 6361 2515 Fax: (86 2) 6361 2516

▲Up To Search▲

Price & Availability of FM209

	To Download FM209 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .