參數(shù)資料
型號(hào): TDA8050A
廠商: NXP SEMICONDUCTORS
元件分類: 通信及網(wǎng)絡(luò)
英文描述: QPSK transmitter
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO32
封裝: PLASTIC, SO-32
文件頁數(shù): 15/28頁
文件大小: 125K
代理商: TDA8050A
1999 Nov 05
15
Philips Semiconductors
Product specification
QPSK transmitter
TDA8050A
Table 2
Modulator reference divider ratio
Table 3
Converter synthesizer charge pump current
Note
1.
LOCK_CONV is an internal signal. When at logic 0, converter PLL is out-of-lock. When at logic 1, converter PLL is
in-lock.
Table 4
f
comp
= f
osc
/RD.
Converter synthesizer
Table 5
ND = 4 f_lo = ND
×
NDR
×
f
comp
= NDR
×
step.
Converter synthesizer;
MP1
MP0
PROGRAMMED RATIO
1
1
0
1
0
1
4
8
16
CR2
CR1
CR0
LOCK_CONV
(1)
I
CP
(mA)
1.2
0.36
0.36
0.1
0.1
0.36
1.2
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
1
1
0
1
0
0
1
0
1
X
X
X
f
osc
\f
comp
1 MHz
4 MHz
25 kHz
50 kHz
125 kHz
40
160
20
80
8
32
f
lo
\step
145 MHz
205 MHz
100 kHz
200 kHz
500 kHz
1450
2050
725
1025
290
410
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