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參數(shù)資料
| 型號： | RF137 |
| 英文描述： | Transceiver For GSM Applications |
| 中文描述： | 收發(fā)器的GSM應(yīng)用 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 114K |
| 代理商： | RF137 |
RF137
Transceiver
6
October 11, 2000
Conexant - Proprietary
Data Subject to Change
100777C
Table 3. RF137 Electrical Specifications (3 of 4)
(T
A
= 25
°
C, Vcc = 3.0 V, except where specified)
Parameter
Symbol
Test Condition
Mn
Typical
Max
Units
Synthesizer
Input frequency (low freq. mode), VHF PLL
fINL(IF)
150
260
MHz
Input frequency (high freq. mode), VHF PLL
fINH(IF)
250
450
MHz
Input frequency (low freq. mode), UHF PLL
fINL(RF)
500
1200
MHz
Input frequency (high freq. mode), UHF PLL
fINH(RF)
500
2000
MHz
Reference frequency
fREF
1
40
MHz
Reference input sensitivity
RIN
500
mVpp
Phase detector frequency
fPD
10
10000
kHz
Phase detector output impedance
ZO
10
M
Prescaler input sensitivity
PIN
100
mVpp
Prescaler input impedance
ZIN
Φ
NMAIN
@ 1 GHz
100
PLL contribution to phase jitter (N=11670)
UHF only;
Fcomparison = 100 kHz,
10 kHz loop BW;
integrated from200 to
270,000 Hz
1.5
Degrees
RMS
Main divider phase jitter
Φ
DIV
Φ
NAUX
0.5
ps
PLL contribution to phase jitter (N=1680)
VHF only; Fcomparison =
300 kHz, 10 kHz loop BW;
integrated from200 to
270,000 Hz
0.75
Degrees
RMS
UHF charge pump current, step 0
I
DOR,0
t=25
°
C
0.6
0.8
1.0
mA
UHF charge pump current, step 1
I
DOR,1
t=25
°
C
0.9
1.2
1.5
mA
UHF charge pump current, step 2
I
DOR,2
t=25
°
C
1.35
1.8
2.25
mA
UHF charge pump current, step 3
I
DOR,3
t=25
°
C
2.02
2.7
3.38
mA
VHF charge pump current, step 0
I
DOI,0
t=25
°
C
0.4
0.5
0.67
mA
VHF charge pump current, step 1
I
DOI,1
t=25
°
C
0.6
0.8
1.0
mA
VHF charge pump current, step 2
I
DOI,2
t=25
°
C
0.9
1.2
1.5
mA
VHF charge pump current, step 3
I
DOI,3
t=25
°
C
1.35
1.8
2.25
mA
Charge pump current relative step size
(current change fromany one step to next step in sequence)
I
DOS
40
50
60
%
Charge pump leakage current
IDOO
–5
5
nA
Charge pump output voltage compliance
VDO
0.5
Vcc–0.5
V
Lock detect time constant
ILOCK
500
μ
s
Lock detect phase error threshold
45
degrees
Three-Wire Control (refer to Figure 4)
Data to clock setup time
tCS
50
ns
Data to clock hold time
tCH
10
ns
Clock pulse width high
tCWH
50
ns
Clock pulse width low
tCWL
50
ns
Clock to load enable setup time
tES
50
ns
Load enable pulse width
tEW
50
ns
Load enable transition to clock start time
tls
50
ns
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