3V, 400 MHz SILICON MMIC
FREQUENCY CONVERTER
FEATURES
鈥?3 V SINGLE SUPPLY VOLTAGE
鈥?LOW CURRENT DISSIPATION:
I
CC
= 7 mA TYP
鈥?HIGH CONVERSION GAIN:
80 dB TYP
鈥?OUTPUT LIMITING:
450 mV p-p
鈥?WIDE BAND OPERATION UP TO 500 MHz
鈥?AGC:
19 dB Typical
RF Bypass
GND
N/C
UPC2753GR
INTERNAL BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
N/C
GND
RF Input
LO Input
LO Bypass
DESCRIPTION AND APPLICATIONS
The UPC2753GR is a frequency converter manufactured
with the NESAT III process. This product consists of an RF
input amplifier, Gilbert cell mixer, LO input buffer, IF amplifier
with AGC, external filter port, and IF output limiting amplifier.
This device was specifically designed for low cost GPS
recievers, mobile radios, and PCN applications.
NEC's stringent quality assurance and test procedures as-
sure the highest reliability and performance.
Mixer IF
V
AGC
IF Bypass
V
CC (DC)
IF Input
V
CC (IF)
Bypass
IF OUT
GND
GND
GND
GND
ELECTRICAL CHARACTERISTICS
(T
A
= 25擄C, V
CC
= 3.0 V, Z
L
= Z
S
= 50
鈩?
SYMBOLS
I
CC
Downconverter & AGC Amplifier
RFu
IFu
CG
NF
RL
IN
ISOL(
LO-RF)
ISOL(
LO-IF)
GC
R
fu
GS
IF
V
OUT
PART NUMBER
PACKAGE OUTLINE
PARAMETERS AND CONDITIONS
Total Circuit Current
4
RF Input Frequency Range (3 dB BW)
1
f
IF
= 4 MHz, V
AGC
= GND
IF Output Frequency Range (3dB BW)
f
RF
= 200 MHz, V
AGC
= GND
Conversion Gain
2
f
RF
= 200 MHz, f
IF
= 4 MHz, V
AGC
= GND
Noise Figure
2
f
RF
= 200 MHz, f
IF
= 20 MHz, V
AGC
= GND
Input Return Loss f
RF
鈮?00
MHz
LO to RF Isolation
3
, f
LO
= 1 to 400 MHz
LO to IF
Isolation
3
, f
LO
= 1 to 400 MHz
Gain Control
f
RF
= 200 MHz, f
IF
= 4 MHz, V
AGC
= 1.2 - 2.4 V
IF Amplifier Frequency
(3 dB BW)
(The gain is -3 dB down from the gain at 4 MHz)
IF Amplifier Small Signal Gain
f = 4 MHz
Output Voltage (Z
L
= 2 K鈩?// 2 pF)
Range
1
UNITS
mA
MHz
MHz
dB
dB
dB
dBc
dBc
dB
MHz
dB
mV p-p
15
DC
38
350
41
450
35
38
12
14
-52
-15
19
20
45
550
MIN
4.7
UPC2753GR
S20
TYP
6.9
MAX
8.5
400
20
42
15
Notes:
1. Conversion Gain is -3 dB from Conversion Gain For f
RF
= 50 MHz.
2. Downconverter and AGC amplifier only.
3. P
LO
= -10 dBm.
IF Amplifier
4. Downconverter and IF amp may be operated separately.
Typical I
CC
for down converter is 5.5 mA (pin 15). Typical I
CC
for
IF amp is 1.4 mA (pin 14).
California Eastern Laboratories
NEC
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2
3
4
5
6
