mgfs39e2527a-01 Mitsumi Electronics, Corp., mgfs39e2527a-01 Datasheet - Page 18

• Manufacturer Part Number: mgfs39e2527a-01
• Description: 2.5-2.7ghz Hbt Integrated Circuit
• Manufacturer: Mitsumi Electronics, Corp.

Specifications are subject to change without notice.
RECOMMENDED PULSE CONDITION
TEST SET-UP
<Power up sequence>
<Power off sequence>
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Vref
RF
Signal
Input
Vc
*1: In case the device is operated under the Vref conditions of more than 50% duty cycle, self-heating will cause
(1)Apply 6V to Vcc, where stepping up from 0 to 6V is preferable.
(2)Supply pulsed voltage between 0 and 2.85V for Vref.
(3)Supply Vcont with 3V for the attenuation mode. In the thru-mode, apply 0V to Vcont
This figure shows the timing chart between Vref and input signal.
Only while the reference voltage is 2.85V, the device transmits the input signal (*1).
We usually set the delay time at 0ms in our EVB evaluation because of short set-up time. However set-up time often
We recommended the device operate with less than 50% duty cycle of a 5msec period in order to ensure specified
Calibrate power meters at input/output ports on the EVB.
Apply DC voltage to Vcc (Vcb1-3, Vcb4, Vc1~Vc4) and Vcont, where pulsed power supply should be applied to Vref
Monitor DC output voltage from Vdet using an oscilloscope or a multimeter.
GND->Vcc->Vref->Vcont
Vcont->Vref->Vcc->GND
Delay
Time
0ms
depends on bypass capacitors of PCB. Therefore, please give appropriate delay time (e.g. about the rise time of
Vref) between the rise edge of Vref and that of the input signal .
reliability.
for pulsed operation. .
Please check the voltage level of Vref close to EVB and the timing chart between
Vref and input signal using an oscilloscope. Also please do not apply supply
voltage exceeding 3V(absolute maximum rating) to the Vref terminal.
or keep it open.
The reverse procedure is recommended for bias off.
Vector Signal
Vector Signal
reliability problem, thereby degrading both power gain and EVM performance unexpectedly.
0V
0V
6V
off
Generator
Generator
2.85V
on
Pulse Width
Pulse Width
2.5ms
2.5ms
Pulse Priod
Pulse Priod
MITSUBISHI ELECTRIC CORP.
5ms
5ms
Power Meter
Power Meter
Attenuator
Attenuator
Coupler
Coupler
DC Power Supply
DC Power Supply
Vcont
time
(18/20)
Vcc
DUT
DUT
Oscilloscope
Oscilloscope
Vdet
Pulse Power Supply
Pulse Power Supply
Vref
Attenuator
Attenuator
Vector Signal Analyzer
Vector Signal Analyzer
2.5-2.7GHz HBT Integrated Circuit
MGFS39E2527A-01
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MITSUBISHI SEMICONDUCTOR
Pulse Period : 5ms
Pulse Width
Delay time
Rise time of Vref pulse : 100ns
Set up time of quiescent current
Attenuator
Attenuator
after Vref turn on : 1 us
Oscilloscope
Oscilloscope
Coupler
Coupler
: 2.5 ms
: 0 ms
Sep. 30-2009
Power Meter
Power Meter
Rev. 1.0