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TRF2443IPFPR Datasheet(PDF) 2 Page - Texas Instruments |
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TRF2443IPFPR Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 72 page  TRF2443 DEVICE DESCRIPTION AGC CNTL 7 0/90 TXPLL 3 RXAGC VCCs GNDs RXPLL TXQ_IN TX_OUT TXI_IN RX_IN RX VGA TX VGA IFAMP From SPI from RXPLL XPIC_IN XPIC OUT XPIC AGC XPIC_BBI XPIC_BBQ Level Detect IF SAW IF_OUT IF_IN TX_PWD Temperature Sensor CLKSPI DATASPI LESPI RXBBI RXBBQ TEMPOUT 0/90 0/90 S P I RECEIVER DESCRIPTION 0/ 90 RXVGA LNA FromSPI fromRXPLL AGC CNTL IFVGA1 IFVGA2 IFVGA3 FromSPI BB AMP/FLT IFSAW RX_IN IF_OUT IF_IN RX_BBI RX _BBQ RX_AGC TRF2443 SLWS217A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009 ................................................................................................................................... www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Figure 1. TRF2443 Functional Block Diagram Figure 2. Receiver Chain Block Diagram The TRF2443 features a highly linear low-noise receiver chain with over 60 dB of analog-controlled gain range and more than 40 dB of gain range programmable via the serial programming interface (SPI) in 1-dB steps. Moreover, the TRF2443 gives the flexibility to add an external IF filter to further remove unwanted signals. Such an external filter can be bypassed using an internal path that can be enabled via SPI. The first block of the 2 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): TRF2443 |
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