FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-23509-1E
ASSP
BIPOLAR
for Telephone
Quadrature Modulator IC
(With 1.0 GHz Up-converter)
MB54609
s
DESCRIPTION
The MB54609 is an intermediate-frequency (IF) quadrature modulator IC incorporating a 1.0-GHz up-converter
optimized for use in digital mobile telecommunication systems such as GSM and PDC (Personal Digital Cellular).
The MB54609 incorporates a quadrature modulator for IF modulation, a transmission up-convert mixer, and a
F/F type phase shifter as well, capable of handing IFs in a broad band.
In addition, the MB54609 operates at a low power supply voltage of 3.0 V and a low power supply current of 18
mA (both as typical values), contributing to saving the power consumption of the device.
s
FEATURES
• Incorporating a high-performance transmission mixer covering the entire frequency band of up to 800 MHz used
for PDC services (Maximum output frequency of 1.1 GHz)
Maximum output frequency: 1.1 GHz, Output level: –9 dBm (typical)
• Externally connecting the quadrature modulator with the transmission mixer, allowing a bandpass filter (BPF)
to be inserted in between
The quadrature modulator output can drive a 50
Ω
load.
• Flip-flop phase shifter capable of handling intermediate frequencies in the broad band (100 to 800 MHz)
• Operation at low voltage: 2.7 to 3.0 to 3.3 V
• Low current consumption
During operating: 18.0 mA (typical)
In power save mode: 0.6 mA (typical)
• Operating temperature range: Ta = –20 to +85°C
s
PACKAGE
20-pin Plastic SSOP
(FPT-20P-M03)
1
MB54609
s
PIN ASSIGNMENT
(TOP VIEW)
RFout
1
20
PS
GND
2
19
GND
LO2
3
18
Q
GND
4
17
XQ
XIF
5
16
XQMOD
IF
6
15
QMOD
LO1
7
14
XI
XLO1
8
13
I
GND
9
12
GND
V
CC
10
11
V
CC
(FPT-20P-M03)
2
MB54609
s
PIN DESCRIPTION
Pin no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin name
RFout
GND
LO2
GND
XIF
IF
LO1
XLO1
GND
V
CC
V
CC
GND
I
XI
QMOD
XQMOD
XQ
Q
GND
PS
Up-converter output pin
GND pin
LO input pin for mixer
GND pin
IF input complementary pin for mixer
IF input pin for mixer
LO input pin for quadrature modulator
LO input complementary pin for quadrature modulator
GND pin
Power supply pin
Power supply pin
GND pin
Baseband input (I) pin
Baseband input (I) complementary pin
Quadrature modulator IF output pin
Quadrature modulator IF output complementary pin
Baseband input (Q) complementary pin
Baseband input (Q) pin
GND pin
Power save mode control pin
Power supply voltage must be applied to both pins.
Function
3
MB54609
s
BLOCK DIAGRAM
V
CC
GND
QMOD
IF
I
XI
RFout
Q
XQ
90° shifter
PS
LO1
XLO1
XQMOD
XIF
LO2
s
ABSOLUTE MAXIMUM RAGINGS (See WARNING)
Parameter
Power supply voltage
Output voltage
Input voltage
Open collector applied voltage
Output current
Storage temperature
Symbol
V
CC
V
O
V
I
V
OC
I
O
Tstg
Rating
–0.5 to 5.0
–0.5 to V
CC
+ 0.5
–0.5 to V
CC
+ 0.5
V
CC
± 0.3
(–0.5 to 5.0)
±10
–55 to +125
Unit
V
V
V
V
mA
°C
RFout pin
Do not leave this pin
open.
Remarks
WARNING:
Exceeding any of the above
Absolute Maximum Ratings
may cause permanent damage to the LSI.
For normal operation, the device should be used under the recommended operating conditions.
Exceeding any of the recommended conditions may adversely affect LSI reliability.
Note: Although the MB54609 contains an antistatic element to prevent electrostatic breakdown and the circuitry
has been improved in electrostatic protection, observe the following precautions when handling the device:
• When storing or carrying the device, put it in a conductive case.
• Before handling the device, check that the jigs and tools to be used have been uncharged (grounded) as
well as yourself. Use a conductive sheet on the working bench.
• Before fitting the device into or removing it from the socket, turn the power supply off.
• When handling (such as transporting) the MB54609 mounted board, protect the leads with a conductive
sheet.
4
MB54609
s
RECOMMENDED OPERATING CONDITIONS
Parameter
Power supply voltage
Input voltage
Open collector applied voltage
Operating temperature
Symbol
V
CC
V
I
V
OC
T
a
Value
Min.
2.7
GND
V
CC
– 0.2
–20
Typ.
3.0
—
—
—
Max.
3.3
V
CC
V
CC
+ 0.2
+85
Unit
V
V
V
°C
RFout pin. Do not leave
this pin open.
Remarks
s
ELECTRIC CHARACTERISTICS
(V
CC
= 3.0 V, Ta = +25°C)
Parameter
Power supply current
Power supply current in power save
mode
Shifter input
LO1
Operating band
Input level
Operating band
Baseband
input
Input amplitude
Offset voltage
Offset current
Mixer input
LO2
Mixer output
RFout
Operating band
Input level
Operating band
Output level
Amplitude deviation
Modulation
precision
Phase deviation
Vector error
Carrier suppression
Symbol
I
CC
I
CC
PS
f
LO1
P
LO1
f
BB
V
BB
V
OS
I
OS
f
LO2
P
LO2
f
RF
P
RF
A
ERR
P
ERR
V
ERR
CS
Value
Min.
—
—
100
–15
DC
—
1.5
—
—
—
—
—
—
—
—
—
Typ.
18.0
0.6
400
—
—
—
1.6
3.0
750
—
950
–9
1.3
0.82
1.9
–40
Max.
23.5
0.9
800
–5
10
1.2
1.7
—
1100
0
1100
—
—
—
—
–30
Unit
mA
mA
MHz
dBm
MHz
Vpp
V
µA
MHz
dBm
MHz f
RF
= f
LO2
± f
LO1
/2
dBm
%
deg.
%
dBc
—
RMS
value
RMS
value
RMS
value
f
LO1
= 400 MHz
(–15 dBm)
f
LO2
= 750 MHz
(–5 dBm)
f
RF
= 950 MHz
output
QMOD/Mix direct
connection
V
BB
= 1 Vpp
External offset voltage value
Input Imp. converted value =
533 kΩ
Remarks
DC current (Input with no AC
signal)
DC current (Input with no AC
signal)
With external offset
unadjusted
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
