PC8100GR is a silicon monolithic integrated circuit designed as up/down converters for 800 MHz to 900 MHz mobile
communications, mainly CT2. This IC consists of upconverter and downconverter, which are packaged in 20 pin SSOP.
Quadrature modulator IC (µPC8101GR) 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 – fRF = 800 MHz to 900 MHz, fIF = 50 MHz to 150 MHz, fLo = 650 MHz to 1 050 MHz
• Upconverter and downconverter are integrated in 1 chip.
• 20 pin SSOP suitable for high-density surface mounting.
• Wide operating voltage V
• Equipped with Power Save Function.
• Excellent linearity
CC = 2.7 to 4.5 V
APPLICATIONS
• Typical application – Digital cordless phone CT2.
(225 mil)Pin 1 indicates roll-in direction of tape.
Remark To order evaluation samples, please contact your local NEC sales office. (Order number: µPC8100GR)
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. P10817EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
Ground for downconverter.
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.)
Bypass of RF input for downconverter.
This pin is RF input for downconverter
designed as double balanced mixer.
This high-impedance input should be
matched with external chip inductor. (eg
4.7 nH).
Open emitter pin of low noise amplifier.
Grounded with capacitor (eg 3 pF) and
register (eg 22 Ω) serially.
REG.
3
4
CC
V
2
REG.
5
Power-save pin
for
downconverter
6
Power-save pin
for
upconverter
7VCC for2.7 to 4.5–
upconverter
8RF outputsame as–
0 to 4.5–
0 to 4.5–
VCC through
intactor
This pin can control downconverter’s
ON/OFF operation with bias as follows;
Bias: VOperation
VPS
This pin can control upconverter’s ON/
OFF operation with bias as follows;
V
PS
Supply voltage for upconverter.
Must be connected bypass capacitor
(e.g 1 000 pF) to minimize ground impedance.
F output from upconverter.
Connect the VCC through inductor (eg 15
nH).
≥1.8ON
0 to 1.0OFF
Bias: VOperation
≥1.8ON
0 to 1.0OFF
5
6
REG.
or
8
9GND0.0–
Ground for RF amplifier of upconverter.
Data Sheet P10817EJ3V0DS00
3
PIN EXPLANATION
µ
PC8100GR
PIN
NO.(V)
ASSIGNMENT
10MIX OUT 12.3
11MIX OUT 22.3
12GND0*
13IF bypass1.03
14IF input1.03
PIN VOLTAGE
FUNCTION AND APPLICATIONEQUIVALENT CIRCUIT
Mixer output from upconverter.
Mixer output from upconverter.
10 and 11 pins should be externally
equipped with tank circuit of inductor (eg
4.7 nH) and capacitor (eg 3.5 pF).
1011
Ground for oscillator buffer amplifier and
mixer of upconverter.
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.)
Bypass of IF input for upconverter.
This pin is IF input for upconverter
designed as double balanced mixer.
This high-impedance input should be
externally equipped with matching circuit
of inductor (eg 220 nH) and capacitor
(eg 1.5 pF).
14
V
CC
13
REG.
15OSC input1.8
(for upconverter)
16OSC bypass1.8
(for upconverter)
17OSC bypass1.85
(for downconverter)
18OSC input1.85
(for downconverter)
19VCC supply for2.7 to 4.5*
for downconverter
20IF output1.45
* Externally supply voltage
Local oscillator input for upconverter. Required for matching with register 51 Ω.
Bypass of local oscillator input for
upconverter.
Bypass of local oscillator input for
downconverter.
Local oscillator input for downconverter. Required for matching with
register 51 Ω.
Supply voltage for downconverter.
It must be connected bypass capacitor
(e.g 1 000 pF) to minimize ground
impedance.
IF output from downconverter.
V
CC
,
1815
,
1716
VCC
20
4
Data Sheet P10817EJ3V0DS00
µ
PC8100GR
ABSOLUTE MAXIMUM RATINGS
Supply VoltageVCCTA = +25 °C5.0V
Power DissipationP
DMounted on 50 × 50 × 1.6 mm double copper530mW
of package allowanceclad epoxy glass board at TA = +70 °C
Operating TemperatureTopt–20 to +70°C
Storage TemperatureT