The mark
shows major revised points.
BIPOLAR ANALOG INTEGRATED CIRCUIT
PC2766GR/GS
WIDE BAND IQ DEMODULATOR FOR DIGITAL VIDEO/DATA RECEIVER
Document No. P10193EJ4V0DS00 (4th edition)
Date Published October 1999 N CP(K)
Printed in Japan
DESCRIPTION
The
PC2766GR/GS is a Silicon monolithic IC designed for use as IQ demodulator in wide dynamic range
compressed video or spread spectrum receivers. This IC consists of a wide band RF amplifier, gain control amplifier,
dual balanced mixers (DBM), Lo buffers, and I & Q output buffer amplifiers.
The package is 20 pin SSOP (shrink small outline package:
PC2766GR) or 20 pin SOP (
PC2766GS) suitable
for high-density surface mount.
FEATURES
Broadband operation
RF & LO up to 1 000 MHz
IF (IQ) up to 200 MHz
Wideband IQ phase and amplitude balance
Amplitude balance
0.3 dB (TYP.)
Phase balance
0.3 degree (TYP.)
AGC dynamic range
45 dB
Low distortion; IM
3
30 dBc
Supply Voltage
5 V
Packaged in 20 pin SSOP or 20 pin SOP suitable for high-density surface mount
ORDERING INFORMATION
PART NUMBER
PACKAGE
PACKAGE STYLE
PC2766GR-E1
20 pin plastic SSOP (225 mil)
Embossed tape 12 mm wide. 2.5 k/REEL
Pin 1 indicates pull-out direction of tape
PC2766GS-E1
20 pin plastic SOP (300 mil)
Embossed tape 24 mm wide. 2.5 k/REEL
Pin 1 indicates pull-out direction of tape
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.
1995, 1999
DATA SHEET
PC2766GR/GS
2
Data Sheet P10193EJ4V0DS00
INTERNAL BLOCK DIAGRAM
20
19
18
17
16
15
14
13
12
11
I-IF Amp.
I-MIX.
I-Lo.Buff.Amp
I-Lo.Buff.Amp
I-IF Amp.
Q-MIX.
RF AGC
RF Pre.Amp
AGC cont.
1
2
3
4
5
6
7
8
9
10
I trim
Vcc
IF. I
Vcc
RF
GND
RF
RF in RF in GND
RF
Vagc
Vcc
IF. Q
Q trim
I out
I out GND
IF. I
Lo I
Lo I
Lo Q
Lo Q GND
IF. Q
Q out Q out
3
PC2766GR/GS
Data Sheet P10193EJ4V0DS00
PIN FUNCTIONS
PIN No.
PIN NAME
PIN VOLTAGE
FUNCTION AND EXPLANATION
EQUIVALENT CIRCUIT
TYP. (V)
1
I Trim
4.2
Trimming pin for I-IF output.
2
V
CC
IF I
5.0
Power supply pin for I-MIXER.
3
V
CC
RF
5.0
Power supply pin for RF and AGC
block.
4
GND RF
0.0
Ground pin of RF and AGC block.
5
RFin
2.6
RF input pin. In case of single input,
6 pin should be grounded through
capacitor.
6
RFin
2.6
7
GND RF
0.0
Ground pin of RF and AGC block.
8
V
AGC
0 to 5
Gain control pin.
V
AGC
= 0 V: Full gain
V
AGC
= 5 V: Maximum reduction
9
V
CC
IF Q
5.0
Power supply pin for Q-MIXER.
10
Q Trim
4.2
Trimming pin for Q-IF output.
1
V
CC
5
6
To next
block
8
V
CC
V
CC
10
PC2766GR/GS
4
Data Sheet P10193EJ4V0DS00
PIN No.
PIN NAME
PIN VOLTAGE
FUNCTION AND EXPLANATION
EQUIVALENT CIRCUIT
TYP. (V)
11
Qout
3.3
Q-IF output pin. 11 pin and 12 pin
are balance outputs.
12
Qout
3.3
13
GNDIF Q
0.0
Ground pin of Q-IF block.
14
Lo Q
2.2
Oscillator signal input pin of
Q-MIXER. In case of single input,
15 pin should be grounded through
capacitor.
15
Lo Q
2.2
16
Lo I
2.2
Oscillator signal input pin of
I-MIXER. In case of single input,
16 pin should be grounded through
capacitor.
17
Lo I
2.2
18
GNDIF I
0.0
Ground pin of I-IF block.
19
Iout
3.3
I-IF output pin. 19 pin and 20 pin
are balance outputs.
20
Iout
3.3
12
+
_
From
before
block
11
V
CC
15
14
V
CC
17
16
V
CC
19
20
+
_
From
before
block
V
CC
5
PC2766GR/GS
Data Sheet P10193EJ4V0DS00
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
C)
PC2766GR
PARAMETER
SYMBOL
RATING
UNIT
TEST CONDITIONS
Supply voltage
V
CC
6.0
V
Power dissipation
P
D
430
mW
T
A
= 85
C
Note 1
Operating temperature range
T
A
40 to +85
C
Storage temperature range
T
stg
55 to +150
C
PC2766GS
PARAMETER
SYMBOL
RATING
UNIT
TEST CONDITIONS
Supply voltage
V
CC
6.0
V
Power dissipation
P
D
650
mW
T
A
= 85
C
Note 1
Operating temperature range
T
A
40 to +85
C
Storage temperature range
T
stg
55 to +150
C
Note 1 Mounted on 50
50
1.6 mm double epoxy glass board.
RECOMMENDED OPERATING RANGE
PC2766GR/GS
PARAMETER
SYMBOL
MAX.
TYP.
MIN.
UNIT
Supply voltage
V
CC
4.5
5.0
5.5
V
Operating temperature range
T
A
40
+25
+85
C
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