PC8101GR is a silicon monolithic integrated circuit designed as up-to-150 MHz quadrature modulator for digital mobile
communications, mainly CT2. This modulator consists of digital 90° phase shifter, dual mixers and various buffer amplifiers
which are packaged in 20 pin SSOP. Up/down converter IC (µPC8100GR) is also available as for kit-use with this IC. So,
these pair devices contribute to make RF block small, high-performance and low power-consumption.
This product is manufactured using NEC’s 20 GHz f
passivation film and gold electrodes. These materials can protect chip surface from external pollution and prevent corrosion
and migration. Thus, this product has excellent performance, uniformity and reliability.
T NESAT
III silicon bipolar process. This process uses silicon nitride
FEATURES
• Operating frequency: fIF = 50 MHz to 150 MHz, Local input frequency: fLo = 100 MHz to 300 MHz, fI/Q = DC to 500 kHz
• Digital 90° phase shifter is incorporated. (Due to the flip flop phase shifter, fIF = fLo/2 + fI/Q.)
• 20 pin SSOP suitable for high-density surface mounting.
• Supply voltage V
• Equipped with Power Save Function.
APPLICATIONS
• Typical application – Digital cordless phone CT2. (In the case of I/Q method)
• Further application – Digital communication equipments.
Remark To order evaluation samples, please contact your local NEC sales office. (Order number: µPC8101GR)
CC = 2.7 to 5.5 V
(225 mil)Pin 1 indicates roll-in direction of tape.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. P10818EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
Local input for phase shifter.
This input impedance is 50 Ω matched
internally.
Bypass of local buffer amplifier input.
Grounded through capacitor.
It must be connected to the system ground
with minimum inductance. Ground pattern on the board should be formed as
wide as possible.
(Track length should be kept as short as
possible.)
These pins are to adjust local leakage
level.
These pins should be grounded through
register 1 kΩ adjustable 30 mV offset.
1
V
CC
2
6GND0–
7Q-INPUTVCC/2–
8Q-INPUTVCC/2–
9GND0–
10IF OUTPUT–1.4
Track length should be kept as short as
possible.
Input for Q signal. This input impedance
is larger than 500 kΩ. As Q signal, VCC/
2 bias DC signal should be input.
Input for Q signal. This input impedance
is larger than 500 kΩ. As Q signal, VCC/
2 biased 1VP–P signal should be input.
Track length should be kept as short as
possible.
IF output from modulator. This output is
emitter follower as 50 Ω impedance. IF
output frequency is provided as fIF = fLo/
2 + fI/Q.
5
4
7
8
10
11VCC2.7 to 5.5–
Supply voltage pin.
Data Sheet P10818EJ3V0DS00
3
µ
PC8101GR
PIN
ASSIGNMENT
NO.
12POWER0 to 5.5–
SAVE
13I-INPUTVCC/2–
14I-INPUTVCC/2–
15GND0–
APPLIED
VOLTAGE (V)
PIN VOLTAGE
(V)
FUNCTION AND APPLICATIONEQUIVALENT CIRCUIT
Power save control pin. This pin can
control ON/OFF operation with bias as
follows;
Bias: VOperation
PS
V
Input for I signal. This input impedance is larger than 500 kΩ. As I signal,
VCC/2 biased 1 VP–P MAX. signal should
be input.
Input for I signal. This input impedance is larger than 500 kΩ. As I signal,
VCC/2 bias DC signal should be input.
Track length should be kept as short
as possible.
≥1.8ON
0 to 1.0OFF
12
13
14
16I-BIAS–0.175
17I-BIAS–0.175
18GND0–
19N.C––
20GND0–
* Pin voltage at VCC = 2.7 V
These pins are to adjust local leakage
level.
These pins should be grounded through
register 1 kΩ adjustable 30 mV offset.
Track length should be kept as short
as possible.
Non connection
Track length should be kept as short
as possible.
16
17
4
Data Sheet P10818EJ3V0DS00
µ
PC8101GR
ABSOLUTE MAXIMUM RATINGS
Supply VoltageVCCTA = +25 °C6.0V
Power DissipationPDMounted on 50 × 50 × 1.6 mm double copper530mW
clad epoxy glass board at TA = +70 °C
Operating TemperatureTopt–20 to +70°C
Storage TemperatureT