UPC8126K NEC, UPC8126K Datasheet - Page 10

• Manufacturer Part Number: UPC8126K
• Description: 900 MHz BAND DIRECT QUADRATURE MODULATOR IC FOR DIGITAL MOBILE COMMUNICATION SYSTEMS
• Manufacturer: NEC

10
1, 3,
5, 8,
15,
18,
22, 23
No.
Pin
21
24
25
26
27
28
(Modulator)
Pre-Mixout 2.7 to 3.6
(Pre-Mix)
(Pre-Mix)
RF-LOin
Symbol
IF-LOin
GND
GND
V
N.C.
CC
1
2.7 to 3.6
Supply
Voltage
(V)
–
0
–
0
–
Pin
Voltage (V)
@3 V
1.3
2.3
–
–
–
–
–
IF input pin for the Pre-Mixer.
This pin is biased internally.
Capacitor should be connected in
series, and grounded through 51 .
Ground pin for Pre-Mixer.
Connect to the ground with minimum
inductance.
Track length should be kept as short
as possible.
RF input pin for the Pre-Mixer.
This pin is biased internally.
Capacitor should be connected in
series, and grounded through 51 .
Supply voltage pin for the Pre-Mixer.
An internal regulator helps keep the
device stable against temperature or
V
Output from the Pre-Mixer. This pin
is designed as open collector. Due
to the high impedance output, this
pin should be externally equipped
with LC matching circuit to next
stage.
Ground pin for the modulator.
Connect to the ground with minimum
inductance.
Track length should be kept as short
as possible.
Non connection pins.
CC
Preliminary Data Sheet P13488EJ1V0DS00
variation.
Description
25
21
Equivalent Circuit
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27
PC8126K