參數(shù)資料
型號： SA9025
廠商： NXP SEMICONDUCTORS
元件分類： 通信及網(wǎng)絡(luò)
英文描述： 900 MHz transmit modulator and 2.2 GHz fractional-N synthesizer
中文描述： SPECIALTY TELECOM CIRCUIT, PQFP48
封裝： 7 X 7 X 1.40 MM, PLASTIC, LQFP-48
文件頁數(shù)： 7/23頁
文件大?。?/td> 134K
代理商： SA9025
Philips Semiconductors
Objective specification
SA9025
900 MHz transmit modulator and 2.2 GHz
fractional–N synthesizer
1997 Aug 01
7
Current output variation versus V
PH
Charge pump voltage compliance
V
PHS
in compliance range
–25
0.5
25
%
V
V
PH
V
CC
–0.5
AC ELECTRICAL CHARACTERISTICS
V
CC
= +3.75 V; T
A
= 25
°
C; unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
TYP
UNITS
MIN
MAX
Modulator
O /
TX
LO 1/2
Transmit LO input (
single-ended, 100
differential)
Input power
Frequency range
-13
900
-10
1100
dBm
MHz
VSWR
TANK1/2
÷
M
XTAL
1
XTAL
2
XO
2:1
VCO tank differential inputs
PLL offset divider
Osc. transistor base
Osc. transistor emitter
Negative resistance
Reference buffer output
Frequency range
Output levels
Harmonic content
Frequency range
Maximum input frequency
Osc. frequency
Osc. frequency
90
180
10
10
180
MHz
MHz
MHz
MHz
40
40
–100
RCLK,
MCLK
Z
LOAD
= 5k
| |
7
pF
10
0.7
1.0
40
1.4
–10
MHz
V
P–P
dBc
TX
EN
Transmit enable
Transmit enable
Transmit disable
Maximum frequency
Diff. mod. level
Diff. input impedance
DC bias point
TX
EN
= 1
TX
EN
= 0
Logic
Q / Q
I / I
Baseband in-phase differential inputs
1.8
0.8
10.0
1.8
820
0.9
V
CC
/2
1.0
2.55
920
MHz
V
P-P
k
V
MHz
TX
RF
TX
RF
operating range
DUAL output SE=1, TX
EN
=1 (with
external matching) (50
)
Differential output, (DUAL
TX
)
open-collector, matched to 200
differential impedance
Linearity worst case intermod. products
(0dB VGA OR +9 dBm, whichever is
less, I & Q in-phase)
Carrier suppression
(I & Q in quadrature)
Sideband suppression
(I & Q in quadrature)
DUAL
TX
AMPS/DAMPS
820
853
MHz
DUAL
TX
Output level (avg. min., I and Q
quad., 0dB VGA)
Gain flatness
3rd-order
5th-order
7th-order
VGA = 0dB
VGA = -38dB
+9.0
+11.0
1
+13.0
dBm
dB
DUAL
TX
-42
-55
-65
-45
-33
-34
-45
-53
-35
dBc
DUAL
TX
dBc
DUAL
TX
-45
-35
dBc
2 to 284 MHz
824 to 849 MHz
849 to 869 MHz
869 to 894 MHz
894 to 8490 MHz
TX
LO
Upper Side Band
-45
-47
-45
-104
-45
-21
–21
dBc
DUAL
TX
Spurious output
dBm
dBc
DUAL
TX
up-conversion products
TX
LO
u -conversion roducts
dBc
TX
LO
±
3
×
TX
OFFSET
Harmonics
≤
10th
-36
-21
DUAL
TX
Broad-band noise (0dB VGA or +9 dBm,
whichever is less)
Adjacent channel noise power
Alternate channel noise power
869 to 894 MHz
-123
dBm/Hz
DUAL
TX
DUAL
TX
@ 30 kHz
@ 60 kHz
-95
–101
dBc/Hz
dBc/Hz
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