K-band VCO
CHV2411aQDG
QFN Pin-out description
Pin number
Pin name
GND
Symbol Name
Description
15,17
2
Ground
P
IF_out
IF output at 1.5 GHz
4
VT
V_Tune
Frequency Tuning Port
5,11,13,20,21,23
VB, V1, VB1, VB2,V2, VD
+V
Positive supply voltage
5
VB
Positive supply voltage of 12 GHz prescalar’s buffer
Positive supply voltage of the VCO core+1st stage of the
24GHZ buffers
11,21
V1,V2
Positive supply voltage of the 2nd & 3rd stages of the
24GHZ buffers
Positive supply voltage of the 4th stages of the 24GHZ
buffers
13
20
VB1
VB2
23
16
VD
RF
Positive supply voltage of the Prescalar
RF output at 24 GHz
F_out
2
P
F_out/16
Prescalar output at 1.5 GHz
Not connected
1,3,6,7,8,9,10,12,14,18,
19,22,24
Nc
External Components and bias configuration (recommended)
Important: Need for a capacitor on the prescalar output port as a DC block (C2).
Ref. : DSCHV2411aQDG7254 - 11 Sept 07
7/10
Specifications subject to change without notice
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Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
