参数资料
型号: PWM-84C-30B
英文描述: Analog IC
中文描述: 模拟IC
文件页数: 1/1页
文件大小: 86K
代理商: PWM-84C-30B
Package Outline
PWM-84C Series
30 to 2500 MHz / 360 Range / 1.4 Resolution / 8-bit TTL Input / Monotonic / SMA Connectors
PHASE SHIFTERS, DIGITAL
For further iformatin contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
PRINCIPAL SPECIFICATIONS
Center
Frequency,
f
c,
MHz
30 - 200
200 - 2500
Model
Number
PWM-84C-***B
PWM-84C-****B
For complete Model Number replace *** with desired
center frequency in MHz
Operating
Bandwidth
30% of f
o
10% of f
o
GENERAL SPECIFICATIONS
Phase Characteristics:
Minimum Shift: 0° to 360° in 255 steps @ f
c
Phase Accuracy, typ:
±
15°
(
±
30°above 1 GHz)
(Guaranteed Monotonic)
RF Characteristics:
Impedance:
VSWR:
Insertion Loss:
50
nom.
2.0:1 max.
2 dB nom, 3 dB max.
(3 dB nom, 4.5 dB max
above 1 GHz)
Loss Var. vs. Phase:1 dB
(1.5 dB above 1 GHz)
Max. Input Power:
+10 dBm
Control Characteristics:
Control Input :
8 Bit TTL
Settling Time:
3
μ
s max.
Supply Power:
±
15 VDC
@ 100 mA max.
Weight, nominal:
4.5 oz (125 g)
Operating Temp.:
-- 55° to +85°C
General Notes:
1. Phase Shifters in the PWM-84C series provide a
minimum of 360° phase shift in 8 binary increments (255
steps) of approximately 1.4° each. Phase shift is produced
using a series of frequency independent analog phase
shifters which are driven by an 8-bit D/A converter. This
method, unlike conventional switched cable designs is
guaranteed to be monotonic even at higher frequencies.
2. The monotonic feature of this design is advantageous
when used for control applications in closed loop systems.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Bit 8 (MSB)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1 (LSB)
(NC)
-15V
(NC)
GND
(NC)
(NC)
+15V
Connector J3 Pinout
J3 Pin
Function
Bit
1
2
3
4
5
6
7
8
Step
1.4°
2.8°
5.6°
11.2°
22.5°
45°
90°
180°
LSB
MSB
Ideal phase characteristic
Typical phase characteristic
NOTES:
1. Tolerance on 3 place decimals
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
26Apr96
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