TDMA T2290/T2297:
DCI (U1800)
B22
Description
The DCI (U1800) is data converter interface between the DSP and the RF functions of a dual band TDMA transceiver. It incorpo-
rates the following functions:
•
Dual channel forward data I and Q(RX_I & RX_Q)
•
Two DACs for reverse data I and Q(TX_I & tx_Q)
•
DAC for AFC
•
DAC for AGC & DAC for reverse PA control
•
DAC for PA bias
•
Serial S ynchronous Interface(SSI)
•
Serial P eripheral Interface(SPI)
•
Internally generates clocks from single master input
•
Analog wide band forward data signalling functio ns with SPI inte rface
•
Analog modulator interface
•
Analog discrim inator interfaces
•
RF Discontinuous Receive du ring Manchester decoding
•
On chip voltage reference for transmi t I and Q
BLOCK DIAGRAM NOT NECESSARY
REFER TO PAGE B23
Содержание T2290
Страница 1: ...DIGITAL WIRELESS TELEPHONE Service Manual Level 3 Release 1 TDMA T2290 T2297 ...
Страница 26: ... 2000 Motorola Inc TDMA T2290 T2297 Cellular Overview 16 ...
Страница 40: ...Motorola Confidential Proprietary TDMA T2290 T2297 TDMA Test Mode NAM Programming 30 ...
Страница 68: ...Disassembly TDMA T2290 T2297 Keypad Removal Motorola Confidential Proprietary 58 ...