CGY 96
CGY 96 Evaluation Board
C11
CLK
R11
C14
Vaux
T1
L11
D1
C GY96
C3
C4
L3
L1
C1
R1
C2
L2
C5
(Size 34mm x 27mm)
Connections:
• Vd
2.7 to 6VDC, pulsed (GSM: 12,5% duty cycle, ton=0.577ms)
• Vaux 2.7 to 6VDC
• Vcontrol 0.2 to 2.2 VDC (0.2V: min Pout, 2.2V: max Pout)
• CLK
5 MHz to 15 MHz (with a 10uH inductor)
or 150 kHz to 250 kHz (with a 100uH inductor instaed of the 10uH)
(rectangular signal, 50% duty, 0 Volt to Vd voltage level)
Power on sequence:
1. continuous clock (CLK) on
2. turn on Vaux ==> check negative voltage at pin#13 (-5......-10V)
3. turn on Vcontrol (may be at the same time as 2)
turn on Drainvoltage Vd
turn on Input Power
Operation without using the negative voltage generator:
Operation without using the on board negative voltage generator is possible. In that case
apply -5....-8 V directly at pin#13 (Vneg-Pin). The decvices in front of pin 13 are not
necessary in that case.
Siemens Aktiengesellschaft
8
Semiconductor Group
8
23.07.1998
HL HF19P9E8-G11a-A0s1