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ISL37231DRAZ-TS Datasheet(PDF) 4 Page - Intersil Corporation |
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ISL37231DRAZ-TS Datasheet(HTML) 4 Page - Intersil Corporation |
4 / 9 page ISL37231 4 FN8266.1 January 25, 2013 AIN2[P,N] A32, A33 Input High-speed differential input for on-ramp (PCB to cable) Channel 2, CML. The use of series 220nF, low ESL/ESR, MLCC capacitors with at least 8GHz frequency response is recommended. AOUT2[N,P] A35, A36 Output High-speed differential output for on-ramp (PCB to cable) Channel 2, CML. (Note 4) AOUT1[P,N] A39, A40 Output High-speed differential output for on-ramp (PCB to cable) Channel 1, CML. (Note 4) AVDD1 B2, R1, R2, R3, R4 (Note 5) 1.0V analog supply voltage. The use of parallel 100pF and 10nF decoupling capacitors to ground is recommended for each of these pins/rails for broad high-frequency noise suppression. AVDD18 B3 1.8V analog supply voltage. The use of parallel 100pF and 10nF decoupling capacitors to ground is recommended for this pin for broad high-frequency noise suppression. NC B4, B6, B7, B13, B14, B19, B20, B26, B27 No connection. Do not connect to these pins. DVDD B5, B15 1.0V digital supply voltage. The use of parallel 100pF and 10nF decoupling capacitors to ground is recommended for these pins for broad high-frequency noise suppression. VDDPLLB1 B8 1.8V analog supply voltage for off-ramp Channel 1. REFRETB1 B9 VDDPLL reference return path for off-ramp Channel 1. REXT2 B10 External reference resistor connection. Recommended value of 1.18kΩ. REFRETB2 B11 VDDPLL reference return path for off-ramp Channel 2. VDDPLLB2 B12 1.8V analog supply voltage for off-ramp Channel 2. AURX2 B16 Input Auxiliary UART input 2. CMOS logic, 1.8V (tolerant to 3.3V). VDDPST B17 1.8V digital supply voltage. The use of parallel 100pF and 10nF decoupling capacitors to ground is recommended for each of these pins for broad high-frequency noise suppression. RESET B18 Input CMOS logic input. 1.8V powered. Resets all internal registers and memory when pulled low. VDDPLLA2 B21 1.8V analog supply voltage for on-ramp Channel 2. REFRETA2 B22 VDDPLL reference return path for on-ramp Channel 2. REXT1 B23 External reference resistor connection. Recommended value of 1.18kΩ. REFRETA1 B24 VDDPLL reference return path for on-ramp Channel 1. VDDPLLA1 B25 1.8V analog supply voltage for on-ramp Channel 1. NOTES: 4. Series coupling capacitors are required at one end of the cable. For best results, place the capacitors at the receiver end of the cable. The use of 220nF low ESL/ESR MLCC capacitors with at least 8GHz frequency response is recommended. 5. Each power bar is independent, so they must all connect to the same 1V supply for proper circuit operation. Pin Functions and Definitions (Continued) PIN NAME PIN NUMBER DIRECTION DESCRIPTION |
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