FX619 Consumer Microcircuits Limited, FX619 Datasheet
FX619
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FX619 Summary of contents
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... DECODER INPUT DEMOD DECODER FORCE IDLE Fig.1 Internal Block Diagram Brief Description The FX619 is an LSI circuit designed as a *Continuously Variable Slope Delta Codec and is intended for use in military communications systems. Designed to meet Eurocom D1-IA8 with external components, the device is suitable for applications in military Delta Multiplexers, switches and phones ...
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... Pin Number Function FX619 FX619 FX619 J L1/ Xtal/Clock : Input to the clock oscillator inverter. A 1.024MHz Xtal input or externally derived clock is injected here. See Clock Mode pins and Figure connection Xtal : Output of clock oscillator inverter. Xtal circuitry shown is in accordance with CML application note D/XT/1 April 1986 ...
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... Pin Number Function FX619 FX619 FX619 J L1/ 15,16 No connection Decoder Output : The recovered analogue signal is output at this pin the buffered output of a bandpass filter and requires external components. During "Powersave" this output is o/ 18,19 No connection Powersave : A logical '0' at this pin puts most parts of the codec into a quiescent non- operational state ...
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... FX619 PARAMETERS MEASURED HERE EUROCOM ANALOGUE INPUT EUROCOM INTERFACE INPUT (BALUN & BUFFER) Fig.2 Eurocom System Configuration – showing the FX619, which with the indicated interfacing, will conform to the Eurocom Basic Parameters Specification D1 – IA8. Component Unit Value Selectable 2 C ...
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Codec Timing Information ENCODER CLOCK t CH DATA CLOCKED ENCODER DATA OUTPUT t PCO DECODER CLOCK DATA CLOCKED DECODER DATA INPUT t SU ENCODER HIGH Z OUTPUT t DR DATA ENABLE Fig.4 Codec Timing Diagrams Codec Performance ...... Using the ...
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Codec Performance ...... Ref: 0dBm0 Input Level = 489mVrms Input Frequency = 820Hz - Input Level (dBm0) Fig.5 Gain vs Input Level (16kbit/s) ...
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Codec Performance ...... Input Level = -20dBm0 Input Frequency (kHz) Fig.10 S/N vs Input Frequency (16kbit/ 6dB/octave - 100 Frequency (Hz) Fig.12 ...
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... Input voltage at any pin (ref V = 0V) SS Source/sink current (supply pins) (other pins) Total device dissipation @ 25 C Derating (J and M1 packages) Derating (L1 and L2 packages) Operating temperature range: FX619J FX619L1/L2 FX619M1 Storage temperature range: FX619J FX619L1/L2 FX619M1 Operating Limits All characteristics are measured using the following parameters unless otherwise specified ...
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... Analogue Voltage Levels used in this Data Sheet: 0dBm0 = 489mVrms = - 4dBm = 0dB. - 20dBm0 = 49mVrms = - 24dBm. Process Information The following Table gives details of the process and test controls employed in the manufacture of the FX619 Eurocom Delta Codec in J and M1 packages only. L1 and L2 products are supplied without the process and test controls detailed below. ...
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... CML does not assume any responsibility for the use of any circuitry described. No circuit patent licences are implied and CML reserves the right at any time without notice to change the said circuitry. Handling Precautions The FX619 is a CMOS LSI circuit which includes input protection. However precautions should be taken to prevent static discharges which may cause damage. ...
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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. ...