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TRF3710_15 Datasheet(PDF) 3 Page - Texas Instruments |
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TRF3710_15 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 27 page www.ti.com THERMAL CHARACTERISTICS TRF3710 SLWS199A – AUGUST 2007 – REVISED FEBRUARY 2008 TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. AGND 26, 35 Analog ground; grounds can be tied together. BBIoutn 33 O Baseband I output: negative terminal BBIoutp 34 O Baseband I output: positive terminal BBQoutn 27 O Baseband Q output: negative terminal BBQoutp 28 O Baseband Q output: positive terminal CHIP_EN 3 I Chip enable; enabled = logic level 1, disabled = logic level 0 CLOCK 48 I SPI clock input SPI data input (programming data for baseband filter frequency setting, PGA gain settings, and dc DATA 47 I offset calibration). Gain_B0 41 I PGA fast-gain control bit 0 Gain_B1 40 I PGA fast-gain control bit 1 Gain_B2 39 I PGA fast-gain control bit 2 GNDBIAS 22 Bias-block ground. Grounds can be tied together. GNDDIG 1 Digital ground. Grounds can be tied together. LOin 30 I Local oscillator input: negative terminal LOip 31 I Local oscillator input: positive terminal Mixer input: negative terminal, connected to external balanced-to-unbalanced (balun) transformer; MIXinn 7 I balun type is frequency-specific. MIXIoutn 44 O Mixer I output: negative terminal (test pin). NC for normal operation MIXIoutp 45 O Mixer I output: positive terminal (test pin). NC for normal operation MIXinp 6 I Mixer input: positive terminal, connected to external balun; balun type is frequency-specific. MIXQoutn 17 O Mixer Q output: negative terminal (test pin). NC for normal operation MIXQoutp 16 O Mixer Q output: positive terminal (test pin). NC for normal operation REXT 20 O Reference-bias external resistor: 30 k Ω; used to set the bias of internal circuits of chip STROBE 46 I SPI enable (latches data into SPI after final clock pulse. Logic level = 1. VCCBBQ 25 Baseband Q-chain power supply, 4.5 V to 5.5 V. Decoupled from other sources VCCBIAS 21 Bias-block power supply, 4.5 V to 5.5 V. Decoupled from other sources VCCDIG 2 Digital power supply, 4.5 V to 5.5 V. Decoupled from other sources VCCLO 29 Local oscillator power supply, 4.5 V to 5.5 V. Decoupled from other sources VCCMIX 4, 9 Mixer power supply, 4.5 V to 5.5 V. Decoupled from other sources VCMQ 24 I Baseband Q-chain input common mode, nominally 1.5 V VOFFQ 23 I Q-chain analog-offset correction input, 0 V to 3 V. VCCBBI 36 Baseband I power supply, 4.5 V to 5.5 V. Decoupled from other sources VCMI 37 I Baseband I chain input common mode, nominally 1.5 V VOFFI 38 I I-chain analog-offset correction input, 0 V to 3 V Over operating free-air temperature range (unless otherwise noted) PARAMETER(1) TEST CONDITIONS MIN TYP MAX UNIT Soldered slug, no airflow 26 RθJA Soldered slug, 200-LFM (1,016 m/s) airflow 20.1 Thermal derating, junction-to-ambient °C/W Soldered slug, 400-LFM (2,032 m/s) airflow 17.4 RθJA (2) 7-mm × 7-mm, 48-pin PDFP 25 RθJB Thermal derating, junction-to-board 7-mm × 7-mm, 48-pin PDFP 12 °C/W (1) Determined using JEDEC standard JESD-51 with high-K board (2) 16 layers, high-K board Copyright © 2007–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TRF3710 |
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