MC145442BDW Motorola, MC145442BDW Datasheet
MC145442BDW
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MC145442BDW Summary of contents
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... Order this document by MC145442B/D MC145442B MC145443B P SUFFIX PLASTIC DIP 20 CASE 738 1 DW SUFFIX SOG PACKAGE 20 CASE 751D 1 ORDERING INFORMATION MC145442BP Plastic DIP MC145443BP Plastic DIP MC145442BDW SOG Package MC145443BDW SOG Package PIN ASSIGNMENT DSI 1 20 TLA Exl CDT 4 ...
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... For proper operation it is recommended that V in and V out be constrained to the range out ) Unused inputs must always be tied to an appropriate logic voltage level (e.g., either MOTOROLA ...
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... Receive Carrier Amplitude Dynamic Range Bit Jitter (S dB, Input = –38 dBm, Bit Rate = 300 baud) Bit Bias Carrier Detect Threshold (CDA = 1 CDA grounded through a 0.1 F capacitor) MOTOROLA ( 5 – Symbol – 0 TxD, Mode, SQT ...
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... CD high, the receive data output (RxD) is clamped high. Frequency Characteristics Originate Mode Answer Mode Receive Transmit Receive 2025 Hz 2025 Hz 1070 Hz 2225 Hz 2225 Hz 1270 Hz 1850 Hz 1850 Hz 1180 Hz 1650 Hz 1650 Hz 980 Hz (kHz) 3 256 15 dB/OCTAVE resistor for R DSI = –1). This pin MOTOROLA ...
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... CDA, pin 7) is maintained on the input to the hybrid circuit longer then the response (defined MOTOROLA by CDT, pin 4). This pin is held at the logic low level until the signal falls below the maximum threshold level for longer than the turn off time ...
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... MODE (pin 13) and a logic high level on LB (pin 2). This mode is used for a self check of the modulator, demodulator, and high–band pass–band filter circuit. This configuration is exactly like the originate loopback mode above, except the signal is routed through the high–band pass–band filter (see Figure 4d). MOTOROLA ...
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... RxA1 11 TxD (c) Originate/Channel 1 Mode and Analog Loopback State (MODE = High Low) 15 RxA2 – 16 RxA1 + 11 TxD (d) Answer/Channel 2 Mode and Analog Loopback State (MODE = Low Low) MOTOROLA AC LOW–BAND S/H AMP BPF HIGH–BAND SMOOTHING BPF FILTER AC LOW–BAND S/H AMP BPF HIGH–BAND ...
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... V equation: where Example: A resistor value unity gain – ( –1 . load. The volt- resistor 600 R TLA –12 dBm –11 dBm 19.8 k –10 dBm 9.2 k –9 dBm 5 – R DSI for RDSI will provide MOTOROLA ...
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... HYBRID AMP 16 RxA1 V ref 7 V CDA 1.2 V THRESHOLD CDA CONTROL C CDA 0.1 F MOTOROLA AUTO–NULLED COMPARATOR 6 ms RETRIGGERABLE ONE–SHOT SAMPLING CLOCK Figure 5. Carrier Detect Circuit MODULATOR OUTPUT DSI R DSI ExI – Figure 6. Line Driver Using the DSI Input ...
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... MODE GND CDA CDA 0 0 EIA–232– DB–25 C1+ C1+ CONNECTOR 18 C1– C1– 8 MMBZ15VDLT1 X 3 DI2 10 Tx2 DO1 2 6 Rx1 DI1 MC145407 3 8 TxEN Tx1 STBY 7 Rx2 7 9 Rx3 V SS GND 2 4 MOTOROLA ...
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... SEATING PLANE 20X 0. 18X MOTOROLA PACKAGE DIMENSIONS P SUFFIX PLASTIC DIP CASE 738– 0.25 (0.010 0.25 (0.010 SUFFIX SOG PACKAGE CASE 751D– ...
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... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...