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AD9961 Fiches technique(PDF) 10 Page - Analog Devices |
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AD9961 Fiches technique(HTML) 10 Page - Analog Devices |
10 / 61 page AD9961/AD9963 Data Sheet Rev. A | Page 10 of 60 Pin No. Mnemonic Description 36 TRXCLK Qualifying Clock for the TRXD Bus. 37 TXCLK Qualifying Clock for the TXD Bus. It can be configured as either an input or output. 38 TXIQ/TXnRX Dual Function Pin. In half-duplex mode (TXnRX), this pin controls the direction of the TRX port. In full- duplex mode (TXIQ), this input signal indicates to which DAC, I or Q, the TxDAC input data is intended. 39 to 48 TXD9 to TXD0 TxDAC Input Data. 52 DVDD18 Digital Core 1.8 V Supply. 53 DLL18V Output of DLL18V Voltage Regulator. 54 DLLFILT DLL Filter Output. 55 CLK18V Output of CLK18V Voltage Regulator. 56, 57 CLKN, CLKP Differential Input Clock. 58 CLK33V Input to CLK18V and DLL18V Voltage Regulators (1.8 V to 3.3 V). If LDOs are not being used, short Pin 58 to Pin 55. CLK33V must track TXVDD. 59, 60 TXQN, TXQP Complementary DAC Q Current Outputs. 61, 67 TXVDD Analog Supply Voltage for Tx Path (1.8 V to 3.3 V). TXVDD must track CLK33V. 62 TXCML Common-Mode Input Voltage for the I and Q Tx DACs. 63 REFIO Decoupling Point for Internal DAC 1.0 V Bandgap Reference. Use a 0.1 µF capacitor to AGND. 64 TXGND Transmit Path Ground. 65, 66 TXIP, TXIN Complementary DAC I Current Outputs. 68 DAC12B Auxiliary DAC B Output. 69 DAC12A Auxiliary DAC A Output. 70 AUXIO3 Selectable Analog Pin. Programmable to either Input 3 of the auxiliary ADC or to the auxiliary DAC10B output. 71 AUXIO2 Selectable Analog Pin. Programmable to either Input 2 of the auxiliary ADC or to the auxiliary DAC10A output. 72 AUXIN1 Input 1 of Auxiliary ADC. EPAD Thermal Pad Under Chip. This must be connected to AGND for proper chip operation. It provides both a thermal and electrical connection to the PCB. |
Numéro de pièce similaire - AD9961 |
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Description similaire - AD9961 |
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