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LMH6521SQENOPB bảng dữ liệu(PDF) 7 Page - Texas Instruments |
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LMH6521SQENOPB bảng dữ liệu(HTML) 7 Page - Texas Instruments |
7 / 28 page LMH6521 www.ti.com SNOSB47C – MAY 2011 – REVISED SEPTEMBER 2011 Table 1. Pin Descriptions (continued) Pin Number Symbol Description 1 SDI Serial Data In. See application section for more details. 32 CSb Serial Chip Select (Active Low). 31 SDO Serial Data Out. 3, 4, 6, 7, 8, 9, 10, GND Pins unused in Serial Mode, connect to DC ground. 16, 20, 21, 25 Digital Inputs Pulse Mode (MOD1 = 0 , MOD0 = 1) 2, 7 UPA, UPB Up pulse pin. A logic 0 pulse will increase gain one step. 1, 8 DNA, DNB Down pulse pin. A logic 0 pulse will decrease gain one step. 1 & 2 or 7 & 8 Pulsing both pins together will reset the gain to maximum gain. 31, 32 S0A, S1A Step size zero and step size 1. (0,0) = 0.5dB; (0, 1)= 1dB; (1,0) = 2dB, and (1, 1)= 6dB. 10, 9 S0B, S1B Step size zero and step size 1. (0,0) = 0.5dB; (0, 1)= 1dB; (1,0) = 2dB, and (1, 1)= 6dB. 3, 5, 6, 16, 25 GND Pins unused in Pulse Mode, connect to DC ground. Table 2. Digital Control Mode Pin Functions Pin Number Parallel Mode Serial Mode Pulse Mode 1 A3 SDI DNA 2 A4 CLK UPA 3 A5 NC GND 4 (MOD0) LOGIC HIGH (MOD0=1) LOGIC LOW (MOD0=0) LOGIC HIGH (MOD0=1) 5 (MOD1) LOGIC HIGH (MOD1=1) LOGIC HIGH (MOD1=1) LOGIC LOW (MOD1=0) 6 B5 GND GND 7 B4 NC UPB 8 B3 NC DNB 9 B2 NC S1B 10 B1 NC S0B 11 INB+ 12 INB- 13 GND 14 +5V 15 GND 16 B0 GND GND 17 OUTB+ 18 OUTB- 19 ENB 20 LATB GND GND 21 LATA GND GND 22 ENA 23 OUTA- 24 OUTA+ 25 A0 NC GND 26 GND 27 +5V 28 GND 29 INA- 30 INA+ 31 A1 SDO S0A 32 A2 CS S1A Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LMH6521 |
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