DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC3205GR
IQ DEMODULATOR FOR DIGITAL VIDEO/DATA RECEIVER
DESCRIPTION
The
µ
PC3205GR is Silicon monolithic IC designed for use as IQ demodulator in digital communication systems.
This IC consists of AGC amplifier, dual balanced mixers (DBM), oscillator, quadrature phase shifter and I & Q output
buffer amplifiers.
The package is 20-pin SSOP (shrink small outline package) suitable for high-density surface mount.
FEATURES
• On chip quadrature (90°) phase shifter
• IQ phase and amplitude balance
• Low distortion
• Supply Voltage
Amplitude Balance :
Phase Balance
IM
3
V
CC
:
:
:
±0.5
dB
±2.0
degree
56 dBc (@0.708 V
P-P
/tone)
5V
• Packaged in 20-pin SSOP suitable for high-density surface mount
ORDERING INFORMATION
Part Number
Package
20-pin plastic SSOP (225 mil)
Supplying Form
Embossed tape 12 mm wide.
Pin 1 indicates pull-out direction of tape.
Q’ty 2.5 k/reel
µ
PC3205GR-E1
For evaluation sample order, please contact your local NEC office. (Part number for sample order:
µ
PC3205GR)
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. P13541EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
©
1998, 1999
µ
PC3205GR
PIN FUNCTIONS
Pin
No.
1
Pin
Name
V
CC
(I)
Pin Voltage
TYP. (V)
5.0
Function and Explanation
Supply voltage pin.
Equivalent Circuit
2
GND(I)
0.0
Ground pin.
3
V
AGC
0 to 5
Gain control pin.
V
AGC
= 0 V: Full gain
V
AGC
= 5 V: Full reduction
3
4
5
GND(IF)
IF IN
0.0
2.7
Ground pin.
IF input pins. In case of single input, 5 pin or
6 pin should be grounded through capacitor.
6
IF IN
2.7
5
6
7
GND(IF)
0.0
Ground pin.
8
V
CC
(IF)
5.0
Supply voltage pin.
9
GND (Q)
0.0
Ground pin.
10
V
CC
(Q)
5.0
Supply voltage pin.
Data Sheet P13541EJ3V0DS00
3
µ
PC3205GR
Pin
No.
11
Pin
Name
Q OUT
Pin Voltage
TYP. (V)
2.6
Function and Explanation
Q-signal output pin.
Equivalent Circuit
11
REG
12
GND(PS)
0.0
Ground pin.
13
GND(PS)
0.0
Ground pin.
14
OSC-C2
3.4
Connected capacitor between 14 pin and 15
pin to oscillate with active feedback loop.
15
OSC-B1
3.0
Connected SAW resonator through
capacitor.
14
16
17
15
16
OSC-B2
3.0
Connected SAW resonator through
capacitor.
17
OSC-C1
3.4
Connected capacitor between 16 pin and 17
pin to oscillate with active feedback loop.
18
V
CC
(PS)
5.0
Supply voltage pin.
19
GND(PS)
0.0
Ground pin.
20
I OUT
2.6
I-signal output pin.
20
REG
4
Data Sheet P13541EJ3V0DS00
µ
PC3205GR
ABSOLUTE MAXIMUM RATINGS (T
A
= +25°C unless otherwise specified)
Parameter
Supply Voltage
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Symbol
V
CC
P
D
T
A
T
stg
T
A
= +85°C
Note
Test Condition
Rating
6.0
433
–40 to +85
–55 to +150
Unit
V
mW
°C
°C
Note
Mounted on 50 mm
×
50 mm
×
1.6 mm double epoxy glass board.
RECOMMENDED OPERATING RANGE
Parameter
Supply Voltage
Operating Ambient Temperature
IF Input Level Range
Gain Control Voltage Range
Symbol
V
CC
T
A
P
IF
V
AGC
V
out
= 1 V
P-P
Test Condition
MIN.
4.5
–25
–45
0.0
TYP.
5.0
+25
–
–
MAX.
5.5
+85
–25
V
CC
Unit
V
°C
dBm
V
ELECTRICAL CHARACTERISTICS (T
A
= +25°C, V
CC
= 5 V, Z
in
= 50
Ω
, Z
out
= 1 kΩ)
Ω
Parameter
Circuit Current
IF Input Frequency
IQ Output Frequency
Symbol
I
CC
f
IF
f
IQ
No input signal
f
IF
> f
OSC
Gcv (@f
IQ
= 10 MHz)
±
1 dB, Vout = 1 V
P-P
P
IF
= –45 to –25 dBm
f
IF
= 490 MHz, f
OSC
= 479.5 MHz
V
AGC
= 0 to 0.5 V
f
IF
= 490 MHz, f
OSC
= 479.5 MHz, V
AGC
= 2 V
f
IF
= 490 MHz, f
OSC
= 479.5 MHz
V
AGC
= 4.5 V to V
CC
f
IF
= 490 MHz, f
OSC
= 479.5 MHz
V
AGC
= 0.5 to 4.5 V
f
IF
= 490 MHz, f
OSC
= 479.5 MHz, V
out
= 1 V
P-P
P
IF
= –45 to –25 dBm
f
IF
= 490 MHz, f
OSC
= 479.5 MHz, V
out
= 1 V
P-P
P
IF
= –45 to –25 dBm
f
IQ
= 0.3 to 30 MHz, P
IF
= –45 to –25 dBm
V
AGC
= 0 to 0.5 V, P
IF
= –45 to –25 dBm
Note
Test Conditions
MIN.
48
440
0.3
Note
49
Note
Note
–
–
Note
39
Note
–2
Note
–0.5
Note
Note
Note
–
1.8
1.0
–
–
–
V
P-P
V
P-P
0
+0.5
dB
0
+2
deg
–
–
dB
44
–
–
10
dB
dB
53
–
dB
TYP.
65
–
–
MAX.
78
520
30
Unit
mA
MHz
MHz
Conversion Gain 1
Gcv1
Conversion Gain 2
Conversion Gain 3
Gcv2
Gcv3
AGC Gain Control Range
GCR
∆φ
∆V
IQ Phase Balance
IQ Amplitude Balance
Output Voltage
Maximum Output Voltage
V
out
Voclip
Note
By measurement circuit 1
Data Sheet P13541EJ3V0DS00
5
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