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參數(shù)資料
| 型號(hào)： | TRF2432_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Dual-Band IQ/IF TRANSCEIVER WITH DUAL VCO SYNTHESIZERS |
| 中文描述： | 雙頻智商具有雙中頻VCO的合成器/ |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 537K |
| 代理商： | TRF2432_07 |
www.ti.com
MODES OF OPERATION
Power Modes
Active Mode
Tx or RX on depending on
TR setting
VCOs on
PA on if PAEN=HIGH and
TR=HIGH
Can calibrate Rx DC I&Q offset
if TR=LOW
Idle Mode
Standby Mode +
RF/IF VCOs on
Standby Mode
Crystal oscilator on
REFOUT buffer on at
crystal frequency only.
All registers active
SERIAL port is active.
PE=
PE=
Serial CMD
Power Off
Vcc=0V
Sleep Mode
& PE=LOW
Serial CMD
Serial CMD
Power On
TRF2432
SLWS177B–APRIL 2005–REVISED NOVEMBER 2006
Table 3. Serial Register Definitions (continued)
NAME
SYMBOL
# OF
BITS
1
DEFAULTS
(1)
DESCRIPTION
Fractional N IF synthesizer
FN_IF
0
FN_IF =1 enables the fractional N IF synthesizer when in
idle or active mode. FN = 0 sets the IF synthesizer to a
fixed frequency (374 MHz with 44 MHz crystal) for low
power consumption.
TX_HP = 1 puts IF amplifier in high linearity mode. TX_HP
= 0 puts the IF amplifier into normal linearity mode to save
current. This does not change linearity of the RFFE.
TX output buffer high power
TX_HP
1
0
Figure 2. Power Modes
10
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