PRELIMINARY DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC8126K
900 MHz BAND DIRECT QUADRATURE MODULATOR IC
FOR DIGITAL MOBILE COMMUNICATION SYSTEMS
DESCRIPTION
The
µ
PC8126K is a silicon monolithic integrated circuit designed as quadrature modulator for digital mobile
communication systems. This IC integrates a pre-mixer for local signals plus a quadrature modulator operating from
889 MHz to 960 MHz. The chip which has been conventionally packaged in 20-pin SSOP is packaged in 28-pin QFN
and therefore is suitable for higher density mounting. In addition, the IC has power save function and can operate
2.7 to 3.6 V supply voltage. Consequently the
µ
PC8126K can contribute to make RF blocks smaller size, higher
performance and lower power consumption.
FEATURES
• Directly modulate in 889 MHz to 960 MHz
• Built-in pre-mixer for local signals
• External IF filter can be applied between modulator output and pre-mixer input terminal.
• Current consumption I
CC
= 35 mA TYP. @ V
CC
= 3.0 V
• Equipped with power save function.
• 28-pin QFN suitable for higher density mounting.
APPLICATIONS
• Digital cellular phones: PDC800M
ORDERING INFORMATION
Part Number
Package
28-pin plastic QFN (5.1
×
5.5
×
0.95 mm)
Supplying Form
Embossed tape 12 mm wide.
QTY 2.5 kp/reel.
Pins 1 through 10 are in pull-out direction.
µ
PC8126K-E1
Remark
To order evaluation samples, please contact your local NEC sales office .
(Part number for sample order:
µ
PC8126K)
Caution Electro-static sensitive device
The information in this document is subject to change without notice.
Document No. P13488EJ1V0DS00 (1st edition)
Date Published February 1999 N CP(K)
Printed in Japan
©
1999
µ
PC8126K
QUADRATURE MODULATOR SERIES PRODUCT
I
CC
(mA)
f
LO1in
(MHz)
f
MODout
Up-Converter
(MHz) f
RFout
(MHz)
External
Phase
Shifter
F/F
Part Number
Functions
150 MHz Quad.Mod
RF Up-Converter + IF
Quad.Mod
400 MHz Quad.Mod
Package
Application
µ
PC8101GR
µ
PC8104GR
µ
PC8105GR
µ
PC8110GR
µ
PC8125GR
µ
PC8126GR
µ
PC8126K
µ
PC8129GR
15/@2.7 V 100 to 300 50 to 150
28/@3.0 V
100 to 400
20-pin
CT-2 etc.
SSOP (225 mil)
900 to 1 900 Doubler
Digital Comm.
+ F/F
External
16-pin
SSOP (225 mil)
20-pin
PDC800 MHz, etc.
SSOP (225 mil)
PHS
16/@3.0 V
100 to 400
1 GHz Direct Quad.Mod
RF Up-Converter + IF
Quad.Mod + AGC
24/@3.0 V
36/@3.0 V
800 to 1 000
220 to 270
Direct
1 800 to 2 000
900 MHz Direct Quad.Mod 35/@3.0 V
with Offset-Mixer
915 to 960
915 to 960
(LO pre-mixer)
889 to 960
F/F
28-pin QFN
PDC800 MHz
889 to 960
×2LO
IF Quad. Mod+RF
Up-Converter
28/@3.0 V 200 to 800 100 to 400 800 to 1 900
20-pin
GSM,
SSOP (225 mil) DCS1800, etc.
30-pin
PHS
TSSOP (225 mil)
µ
PC8139GR-7JH Transceiver IC
(1.9 GHz Indirect Quad.
Mod + RX-IF + IF VCO)
µ
PC8158K
RF Up-Converter + IF
Quad.Mod + AGC
TX: 32.5
RX: 4.8
/@3.0 V
28/@3.0 V
220 to 270
1 800 to 2 000
CR
100 to 300
800 to 1 500
28-pin QFN
PDC800 M/1.5 G
Remark
For outline of the quadrature modulator series, please refer to the application note
Usage of
µ
PC8101,
8104, 8105, 8125, 8129 (Document No. P13251E)
and so on.
Preliminary Data Sheet P13488EJ1V0DS00
3
µ
PC8126K
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Power Save Control Voltage
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Symbol
V
CC
V
PS
P
D
T
A
T
stg
Test Conditions
T
A
= +25 °C
T
A
= +25 °C
T
A
= +85 °C
Note
Rating
4.0
4.0
430
–40 to +85
–55 to +150
Unit
V
V
mW
°C
°C
Note
Mounted on a 50
×
50
×
1.6 mm double sided copper clad epoxy glass PWB.
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage
Operating Ambient Temperature
Pre-Mix. RF Input Frequency
Pre-Mix. RF Input Power
Pre-Mix. IF Input Frequency
Pre-Mix. IF Input Power
Pre-Mix. Output Frequency
(Modulator Output Frequency,
Modulator LO Input Frequency)
Modulator LO Input Power
I/Q Input Frequency
I/Q Input Amplitude
Symbol
V
CC
T
A
f
RFin
P
RFin
f
IFin
P
IFin
f
MIXout
(f
MODout
, f
LOin
)
f
IFin
= 200 MHz
f
IFin
= 135 MHz
P (f
IF
×
7)
≤
–65 dBc
Test Conditions
MIN.
2.7
–25
689
–13
120
–14
889
915
–21.5
DC
Single ended Input
Differential Input
–
–
TYP.
3.0
+25
–
–11
135
–12
–
–
–18.5
–
–
–
MAX.
3.6
+75
1 200
–9
270
–10
898
960
–15.5
10
500
250
Unit
V
°C
MHz
dBm
MHz
dBm
MHz
MHz
dBm
MHz
mV
P-P
P
LOin
f
I/Qin
V
I/Qin
Preliminary Data Sheet P13488EJ1V0DS00
5
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