CMX605D4 Consumer Microcircuits Limited, CMX605D4 Datasheet
CMX605D4
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CMX605D4 Summary of contents
Page 1
... Other tone standards supported are: Fax and Modem ‘answer’ and ‘originate’, ITU (CCITT) ‘R1’ and ‘R2’ signals, and sufficient tones for simple melody generation. µController is performed by a ‘C-BUS’ serial interface, which is compatible with the ‘SPI’ interface. 2001 Consumer Microcircuits Limited CMX605 Digital Line to ...
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... Tone/FSK Encoder and Tone Encoder .................................. 7 1.5.4 SPM Generator ...................................................................... 10 1.5.5 Transmit Operator................................................................. 10 1.5.6 Tx UART ................................................................................ 10 1.5.7 DTMF Tone Decoder ............................................................. 12 1.5.8 ‘C-BUS’ Interface................................................................... 13 1.5.9 ‘C-BUS’ Registers ................................................................. 14 1.6 Application Notes 1.6.1 Telecom Tones ....................................................................... 15 1.6.2 C-BUS Timing......................................................................... 19 1.7 Performance Specification 1.7.1 Electrical Performance.......................................................... 22 1.7.2 Packaging.............................................................................. 26 2001 Consumer Microcircuits Limited CONTENTS ............................................................................ 1 ................................................................................. 3 ......................................................................................... 4 ................................................................... 6 ...................................................................... 7 ........................................................................ 15 ....................................................... 22 2 CMX605 Page D/605/6 ...
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... Digital Line to POTS Interface 1.2 Block Diagram 2001 Consumer Microcircuits Limited Figure 1 Block Diagram 3 CMX605 D/605/6 ...
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... CSN 6 IRQN TONEFSK 9 SPM 10 2001 Consumer Microcircuits Limited Signal Type O/P The output of the on-chip Xtal oscillator inverter. I/P The input to the oscillator inverter from the Xtal circuit or external clock source. I/P The ‘C-BUS’ serial clock input from the host C. See section 1.5.8 I/P The ‘ ...
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... It is recommended that the printed circuit board is laid out with a ground plane in the CMX605 area to provide a low impedance connection between the V V decoupling capacitors. BIAS 2001 Consumer Microcircuits Limited Signal Type O/P An internally generated bias voltage of V except when the device has been reset, V ...
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... Digital Line to POTS Interface 1.4 External Components Figure 2 Recommended External Components R1 X1 Resistors ±5%, capacitors ±10% unless otherwise stated. 2001 Consumer Microcircuits Limited C1, C2 100k 3.579545 MHz C3 C4 CMX605 18pF 0.1µF 1.0µF D/605/6 ...
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... Bit 6 of the MODE Register is then used to enable or disable the block’s output to the Tx Signal Control, RING and TONEFSK outputs. There are four tone fields addressed by bits 0 and 1 of the MODE Register. 2001 Consumer Microcircuits Limited before enabling the Tx BIAS ...
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... Consumer Microcircuits Limited Frequency TX TONES Register Bits 0-3 (Hz OFF 0 1 252 268 285 315 330 375 404 468.0 ...
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... Consumer Microcircuits Limited Frequency TX TONES Register Bits (Hz OFF 0 1 700 0 0 900 0 1 1100 0 0 1300 0 1 1500 0 0 1700 950 ...
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... If bit 1 of the SETUP Register is ‘1’ (Tx Async mode) then bits will be transmitted as asynchronous data characters at 1200 bps according to the following format: 2001 Consumer Microcircuits Limited . The nominal output signal levels (at 0dB attenuation and DD Single Tone ...
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... Mark (‘1’) signal will be transmitted until a new value is loaded into TX DATA. If the ‘Tx Sync’ mode is selected then the byte already in the TX DATA Register will be re-transmitted. 2001 Consumer Microcircuits Limited Figure 3a Transmit UART Function (Async) Figure 3b Transmit UART Function (Sync) ...
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... A status change of the decoder and the generation of an interrupt will occur both when a tone is first decoded and also when a tone, which was previously present longer decoded. In the latter case, Bit 4 of the STATUS Register will be set to “0” to indicate that no tone was detected. 2001 Consumer Microcircuits Limited DTMF Tone Bit 0 ...
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... Serial Clock is high. The interface is compatible with the most common µC serial interfaces such as SCI, SPI and Microwire, and may also be easily implemented with general purpose µC I/O pins controlled by a simple software routine. See Figure 8 for detailed ‘C-BUS’ timing requirements. 2001 Consumer Microcircuits Limited Figure 4 ‘C-BUS’ Transactions 13 ...
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... If any of bits the STATUS Register is ‘1’ then the IRQN output will be pulled low. 3. Reading the STATUS Register clears the IRQN output and also clears bit 5 of the STATUS Register, if set. Bits 6 and 7 of the STATUS Register are cleared on writing to the TX DATA Register. 2001 Consumer Microcircuits Limited Command Data Byte (Bits ...
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... The tables are not exhaustive, but list the more commonly used tones. Ringing Signals (f 2.5%) (Hz) Off 16 2001 Consumer Microcircuits Limited Figure 5 Tone Starting and Stopping Figure 6 Tone Changing Field 0 (Hex) $00 $01 $02 $03 $04 $05 $06 15 BIAS, ...
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... Single Frequency Call Progress Tones (Hz) Off 120 150 154 250 300 350 400 425 440 450 480 500 600 620 2001 Consumer Microcircuits Limited Dual Tone Field 0 (Hex) $60 375.2+1827 $70 404.3+1827 $80 468+1827 $90 495.8+1827 $A0 520.6+1827 $B0 548+1827 $C0 562.8+1827 $D0 578 ...
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... Special Information Tones, Fax and Modem Tones and Customer Premises Alert Tones (Hz) Off 950 1100 1300 1400 1800 2100 2225 2130+2750 2001 Consumer Microcircuits Limited M Field 1 (Hex) $00 $66 $F6 $FC $C4 $C7 $D4 $F4 $1C $27 Field 2 (Hex) $00 $FF ...
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... CCITT ‘R2’ Signalling Tones Forward mode (Hz) Off 1380+1500 1380+1620 1500+1620 1380+1740 1500+1740 1620+1740 1380+1860 1500+1860 1620+1860 1740+1860 1380+1980 1500+1980 1620+1980 1740+1980 1860+1980 2001 Consumer Microcircuits Limited Field 2 (Hex) $12 $13 $23 $14 $24 $34 $15 $25 $35 $45 $16 $26 $36 $46 $56 Backward mode Field 3 (Hex) ...
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... Please note that the C-BUS timing is not shown to the same scale as the FSK output (it has been magnified by at least 20 times to make it visible on the same scale). Figure 7a ASYNC mode after GENERAL RESET 2001 Consumer Microcircuits Limited 19 CMX605 D/605/6 ...
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... Digital Line to POTS Interface Figure 7b SYNC mode after GENERAL RESET 2001 Consumer Microcircuits Limited 20 CMX605 D/605/6 ...
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... Digital Line to POTS Interface Figure 7c SYNC mode after GENERAL RESET 2001 Consumer Microcircuits Limited (using alternative order of commands) 21 CMX605 D/605/6 ...
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... Storage Temperature Operating Temperature 1.7.1.2 Operating Limits Correct operation of the device outside these limits is not implied. Supply ( Operating Temperature Xtal Frequency Notes Xtal frequency of 3.579545MHz ±0.1% is required for correct operation. 2001 Consumer Microcircuits Limited pins SS Notes 1 22 Min. Max. Unit -0.3 7 ...
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... SPM has a soft rise and fall time of about 4.5ms. The level changes between V 0dBm in 2dB steps, 16 steps per rise and fall. When SPM is disabled, an extra 4.5ms falling tail end of signal should be taken into consideration. 2001 Consumer Microcircuits Limited = 3.0V to 5.5V at Tamb = -40 to +85°C, DD ...
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... Pulse Width 'Low' Pulse Width Input Impedance (at 100Hz) Gain (I/P = 1mVrms at 100Hz) Notes: 7. Referenced to DTMF tone of lower amplitude. 8. Bandwidth limited 3.4kHz Gaussian Noise. 9. Timing for an external input to the XTAL/CLOCK pin. 10. Over the range V 2001 Consumer Microcircuits Limited Notes 7 ...
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... CML Publication D/800/Sys/3 July 1994. Typical UART Timings (See Figures 3a and 3b) T (delay through the modulator) FSK T (1 bit period) DLY T (¼ bit-period) DRDY T (3/4 bit-period) UFL 2001 Consumer Microcircuits Limited Notes Min. 100 100 0.0 - 1.0 500 500 200 200 75 25 ...
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... Digital Line to POTS Interface 1.7.2 Packaging Figure 9 16-pin SOIC (D4) Mechanical Outline: Order as part no. CMX605D4 Figure 10 16-pin DIL (P3) Mechanical Outline: Order as part no. CMX605P3 Handling precautions: This product includes input protection, however, precautions should be taken to prevent device damage from electro-static discharge. CML does not assume any responsibility for the use of any circuitry described. No IPR or circuit patent licences are implied ...
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... CML Microcircuits Product Prefix Codes Until the latter part of 1996, the differentiator between products manufactured and sold from MXCOM, Inc. and Consumer Microcircuits Limited were denoted by the prefixes MX and FX respectively. These products use the same silicon etc. and today still carry the same prefixes. ...