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DAC3152IRGZR 데이터시트(PDF) 3 Page - Texas Instruments |
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DAC3152IRGZR 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 30 page 1 2 3 4 5 6 7 8 9 10 11 12 35 34 33 32 31 30 29 28 27 26 25 DAC3162 RGZ Package 48-QFN 7x7mm (Top View) 36 D10P D11N D1P D1N D0P D0N NC NC NC DVDD18 D7N D7P D8N D8P D9N D9P D10N D11P DACCLKN DACCLKP VFUSE ATEST SLEEPB NC DAC3152 DAC3162 www.ti.com SLAS736D – NOVEMBER 2010 – REVISED AUGUST 2012 DAC3162 PINOUT AND PIN FUNCTIONS PIN FUNCTIONS PIN I/O DESCRIPTION NAME NO. ATEST 35 O Factory use only. Leave unconnected for normal operation. AVDD33 40, 43, 45 – Analog supply voltage (3.3 V) BIASJ 42 O Full-scale output current bias. For 20-mA full-scale output current, connect a 960- Ω resistor to GND. Internal clock buffer supply voltage (1.8 V) CLKVDD18 44 – This supply can be shared with DIGVDD18. LVDS positive-input data bits 0 through 11. Each positive/negative LVDS pair has an internal 100- Ω termination resistor. Data format relative to DACCLKP/N clock is double data rate (DDR) with two data transfers per 3, 5, 7, 9, 11, 13, DACCLKP/N clock cycle. Dual channel data is interleaved on this bus. D[11..0]P 16, 19, 21, 23, I 25, 27 D11P is most-significant data bit (MSB) – pin 3 D0P is least-significant data bit (LSB) – pin 27 LVDS negative-input data bits 0 through 11. (See D[11:0]P description) 4, 6, 8, 10, 12, D[11..0]N 14, 17, 20, 22, I D11N is most-significant data bit (MSB) – pin 4 24, 26, 28 D0N is least-significant data bit (LSB) – pin 28 Positive external LVPECL clock input with a self-bias of approximately CLKVDD18/2. Input data is latched on both DACCLKP 1 I edges of DACCLKP/N (double data rate). The LVPECL clock signal should be AC coupled. Complementary external LVPECL clock input (see the DACCLKP description). The LVPECL clock signal should DACCLKN 2 I be AC coupled. Digital supply voltage (1.8 V) DVDD18 15, 33, 41 – This supply can be shared with CLKVDD18. 39, 46, GND – Pins 39, 46 and the thermal pad located on the bottom of the QFN package are ground for all supplies. Thermal pad A-channel DAC current output. An offset binary data pattern of 0x0000 at the DAC input results in a full-scale IOUTAP 48 O current sink and the least-positive voltage on the IOUTAP pin. Similarly, a 0xFFF data input results in a 0-mA current sink and the most-positive voltage on the IOUTAP pin. A-channel DAC complementary current output. IOUTAN has the opposite behavior of the IOUTAP described for IOUTAN 47 O IOUTAP. An input data value of 0x0000 results in a 0-mA sink and the most-positive voltage on the IOUTAN pin. IOUTBP 37 O B-channel DAC current output. See the IOUTAP description. IOUTBN 38 O B-channel DAC complementary current output. See the IOUTAN description. NC 25–32 – No connect. Leave unconnected for normal operation. SLEEPB 34 I Connect to GND to put the device in sleep mode or to AVDD for active mode. Internal pullup. Digital supply voltage (1.8 V). This supply pin is also used for factory fuse programming. Connect to DVDD18 VFUSE 36 – pins for normal operation. VREF 18 I/O Factory use only. Connect to a 0.1- μF decoupling capacitor to GND. Copyright © 2010–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: DAC3152 DAC3162 |
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