DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC2721,
µ
PC2722
GENERAL PURPOSE L-BAND DOWN CONVERTER ICs
DESCRIPTION
The
µ
PC2721/2722 are Silicon monolithic ICs designed for L-band down converter. These ICs consist of double
balanced mixer, local oscillator, local oscillation buffer amplifier, IF amplifier, and voltage regulator.
The packages are 8 pin SOP or SSOP suitable for high-density surface mount.
FEATURES
• Wide band operation f
RF
= 0.9 to 2.0 GHz
• Two products in IF output variation are prepared
µ
PC2721: Emitter follower output type = 50
Ω
constant resistive impedance
µ
PC2722: Open collector output type = High impedance output dependent on external inductance.
• Single-end push-pull IF amplifier suppresses fluctuation in output impedance.
• Supply voltage: 5 V
• Low current consumption (
µ
PC2721: I
CC
= 38 mA typ.,
µ
PC2722: I
CC
= 28 mA typ.)
• Packaged in 8 pin SOP or SSOP suitable for high-density mounting
ORDERING INFORMATION
PART NUMBER
PACKAGE
8 pin Plastic SOP (225 mil)
PACKAGE STYLE
Embossed tape 12 mm wide 2.5 k/REEL.
Pin 1 indicates pull-out direction of tape.
Embossed tape 12 mm wide 2.5 k/REEL.
Pin 1 indicates roll-in direction of tape.
Embossed tape 8 mm wide 1 k/REEL.
Pin 1 indicates pull-out direction of tape.
µ
PC2721GR-E1
µ
PC2722GR-E1
µ
PC2721GR-E2
µ
PC2722GR-E2
µ
PC2721GV-E1
µ
PC2722GV-E1
8 pin Plastic SOP (225 mil)
8 pin Plastic SSOP (175 mil)
For evaluation sample order, please contact your local NEC office.
(Part number for sample order:
µ
PC2721GR,
µ
PC2722GR,
µ
PC2721GV,
µ
PC2722GV)
Caution electro-static sensitive device
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. P11102EJ4V0DS00 (4th edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
©
1996, 1999
µ
PC2721,
µ
PC2722
INTERNAL BLOCK DIAGRAM
8
7
6
5
PIN CONFIGURATION (Top View)
1
2
OSC
OSC
Buffer
8
7
6
5
1. OSC base (bypass)
2. OSC base (feedback)
3. OSC collector (coupling)
4. V
CC
5. IF output
6. GND
7. RF input 2 (bypass)
8. RF input 1
3
4
1
2
3
4
2
Data Sheet P11102EJ4V0DS00
µ
PC2721,
µ
PC2722
PIN
No.
1
SYMBOL
OSC base
(bypass)
PIN VOLT
TYP.(V)
2.9
Function and Explanation
Internal oscillator consists in balance
amplifier. 2 pin and 3 pin should be
externally equipped with tank resonator
circuit in order to oscillate with feedback
loop.
1 pin should be grounded through
coupling capacitor to 0.5 pF.
3 pin is defined as open collector. This pin
should be coupled through resistor or
chock coil in order to adjust Q and be
supplied voltage. In case of abnormal
oscillation, adjust its Q lower to stabilize
the operation.
Equivalent circuit
2
V
CC
3
1
2
OSC base
(feedback)
2.9
3
OSC
collector
(coupling)
5.0
4
5
V
CC
IF output
5.0
Supply voltage pin for the IC.
In
µ
PC2721, IF amplifier is designed as
single-end push-pull amplifier.
This pin is assigned for the emitter follower
output with 50
Ω
constant resistive
impedance in wide band.
µ
PC2721
2.9
µ
PC2721
5
µ
PC2722
5.0
In
µ
PC2722, IF amplifier is designed as
balance amplifier.
This pin is assigned for the open collector
output with high impedance dependent on
external inductance.
µ
PC2722
5
6
7
GND
RF input 2
(bypass)
0.0
2.4
GND pin for the IC.
7 pin and 8 pin are inputs for mixer
designed as double balanced type. Either
pin can be assigned for input and another
for ground.
7
8
8
RF input 1
2.4
Data Sheet P11102EJ4V0DS00
3
µ
PC2721,
µ
PC2722
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
Operating temperature range
Storage temperature range
SYMBOL
V
CC
P
D
T
A
T
stg
RATING
6.0
250
−40
to +85
−65
to +150
UNIT
V
mW
°C
°C
TEST CONDITION
T
A
= 25 °C
T
A
= 85 °C
Note 1
Note 1:
Mounted on 50
×
50
×
1.6 mm double copper clad epoxy glass board.
RECOMMENDED OPERATING RANGE
PARAMETER
Supply Voltage
Operating temperature range
SYMBOL
V
CC
T
A
MIN.
4.5
−40
TYP.
5.0
+25
Note 2
MAX.
5.5
+85
UNIT
V
°C
ELECTRICAL CHARACTERISTICS (V
CC
= 5.0 V, T
A
= +25 °C
µ
PC2721
MIN.
Circuit Current
Lower Input Frequency
Upper Input Frequency
Conversion Gain 1
Conversion Gain 2
Noise Figure 1
Noise Figure 2
Maximum output power 1
Maximum output power 2
I
CC
f
RF
1
f
RF
2
CG1
CG2
NF1
NF2
P
O(SAT)
1
P
O(SAT)
2
2.0
18
18
−
−
+2
+2
21
21
9
11
+7
+7
24
24
13
15
−
−
29
TYP.
38
MAX
45.5
0.9
)
PARAMETER
SYMBOL
µ
PC2722
MIN.
19
TYP.
28
MAX
37
0.9
2.0
15
15
−
−
+2
+2
18
18
9
9
+6
+6
21
21
13
13
−
−
UNIT
mA
GHz
GHz
dB
dB
dB
dB
dBm
dBm
TEST CONDITIONS
no input signal
f
IF
= 50 to 600 MHz (C2721)
f
IF
= DC to 600 MHz (C2722)
f
RF
= 900 MHz, f
IF
= 402.8 MHz
f
RF
= 2.0 GHz, f
IF
= 402. 8 MHz
f
RF
= 900 MHz, f
IF
= 402.8 MHz
f
RF
= 2.0 GHz, f
IF
= 402.8 MHz
f
RF
= 900 MHz, f
IF
= 402.8 MHz
f
RF
= 2.0 GHz, f
IF
= 402.8 MHz
Note 2:
on test circuit
STANDARD CHARACTERISTICS (FOR REFERENCE) (V
CC
= 5 V, T
A
= 25 °C
REFERENCE VALUES
Note 2
)
PARAMETER
Conversion Gain 3
Conversion Gain 4
Conversion Gain 5
Conversion Gain 6
Conversion Gain 7
Conversion Gain 8
Third Intermodulation Distortion 1
Third Intermodulation Distortion 2
SYMBOL
CG3
CG4
CG5
CG6
CG7
CG8
IM
3
1
IM
3
2
UNIT
dB
dB
dB
dB
dB
dB
dBc
dBc
TEST CONDITIONS
f
RF
= 900 MHz, f
IF
= 50 MHz
f
RF
= 2.0 MHz, f
IF
= 50 MHz
f
RF
= 900 MHz, f
IF
= 479.5 MHz
f
RF
= 2.0 MHz, f
IF
= 479.5 MHz
f
RF
= 900 MHz, f
IF
= 600 MHz
f
RF
= 2.0 MHz, f
IF
= 600 MHz
f
RF
= 900, 938 MHz, P
in
=
−30
dBm
f
RF
= 2.0, 2.038 GHz, P
in
=
−30
dBm
µ
PC2721
22
22
21
21
19.5
19.5
38.0
38.0
µ
PV2722
19
19
18
18
17
17
42.0
42.0
4
Data Sheet P11102EJ4V0DS00
µ
PC2721,
µ
PC2722
TYPICAL CHARACTERISTICS (T
A
= +25
°
C)
CIRCUIT CURRENT vs. SUPPLY VOLTAGE
60
No input signal
P
out
– Output Power – dBm
I
CC
– Circuit Current – mA
50
40
30
20
+5
0
–5
–10
–15
–20
–40
C2
72
1
2
OUTPUT POWER vs. INPUT POWER
+10
f
RF
= 2.0 GHz
f
RF
= 900 MHz
f
RF
= 2.0 GHz
f
RF
= 900 MHz
72
µ
PC2721
µ
P
µ
PC2722
10
µ
P
C2
V
CC
= 5 V
f
IF
= 402 MHz
On test circuit
–30
–20
–10
0
+10
+20
0
1
2
3
4
5
6
V
CC
– Supply Voltage – V
P
in
– Input Power – dBm
CONVERSION GAIN AND NOISE FIGURE vs.
INPUT FREQUENCY
30
CG – Conversion Gain – dB
25
NF – Noise Figure – dB
20
15
10
5
0
25
CG
20
15
10
5
V
CC
= 5 V
P
RF
= –30 dBm
P
OSC
= –5 dBm
f
IF
= 402 MHz
On test circuit
CONVERSION GAIN vs. IF FREQUENCY
30
CG – Conversion Gain – dB
25
20
15
10
V
CC
= 5 V
P
OSC
= 0 dBm
5
P
RF
= –30 dBm
On test circuit
0
100
200
300
400
500
600
f
RF
= 2.0 GHz
µ
PC2721
µ
PC2722
µ
PC2721
µ
PC2722
NF
µ
PC2721
f
RF
= 900 MHz
0
0.5
1.0
1.5
2.0
2.5
3.0
f
in
– Input Frequency – GHz
f
IF
– IF Frequency – MHz
IM
3
AND OUTPUT POWER vs. INPUT POWER
+10
0
P
out
– Output Power – dBm
–10
–20
–30
–40
–50
–60
–40
P
out
– Output Power – dBm
+10
0
–10
–20
–30
IM
3
AND OUTPUT POWER vs. INPUT POWER
µ
PC2721
f
RF1
= 900 MHz
f
RF2
= 938 MHz
f
OSC
= 1.3 GHz
f
RF1
= 2.0 GHz
f
RF2
= 2.038 GHz
f
OSC
= 2.4 GHz
V
CC
= 5 V
µ
PC2722
–40
–50
–60
–40
f
RF1
= 900 MHz
f
RF2
= 938 MHz
f
OSC
= 1.3 GHz
f
RF1
= 2.0 GHz
f
RF2
= 2.038 GHz
f
OSC
= 2.4 GHz
V
CC
= 5 V
–30
–20
–10
0
–30
–20
–10
0
P
in
– Input Power – dBm
P
in
– Input Power – dBm
Data Sheet P11102EJ4V0DS00
5
