BIPOLAR ANALOG INTEGRATED CIRCUIT
PC3221GV
5 V AGC AMPLIFIER + VIDEO AMPLIFIER
DESCRIPTION
The
PC3221GV is a silicon monolithic IC designed for use as AGC amplifier for digital CATV, cable modem
systems. This IC consists of gain control amplifier and video amplifier.
The package is 8-pin SSOP suitable for surface mount.
nitride passivation film.
This IC is manufactured using our 10 GHz f
T
NESAT II AL silicon bipolar process. This process uses silicon
corrosion/migration. Thus, this IC has excellent performance, uniformity and reliability.
FEATURES
• Low distortion
• Low noise figure
• Wide AGC dynamic range
• On-chip video amplifier
• Supply voltage
• Packaged in 8-pin SSOP suitable for surface mounting
APPLICATION
• Digital CATV/Cable modem receivers
ORDERING INFORMATION
Part Number
CO
Package
PC3221GV-E1-A
8-pin plastic SSOP (4.45 mm (175))
Remark
To order evaluation samples, contact your nearby sales office.
Part number for sample order:
PC3221GV-A
DI
S
Caution
:
Observe precautions when handling because these devices are sensitive to electrostatic discharge
Document No. PU10171EJ03V0DS (3rd edition)
NT
IN
U
: IM
3
= 56 dBc TYP. @ single-ended output, V
out
= 0.7 V
p-p
/tone
: GCR = 50 dB TYP. @ input prescribe
: NF = 4.2 dB TYP.
: V
out
= 1.0 V
p-p
TYP. @ single-ended output
: V
CC
= 5.0 V TYP.
Supplying Form
Embossed tape 8 mm wide
Pin 1 indicates pull-out direction of tape
Qty 1 kpcs/reel
The mark
shows major revised points.
This material can protect chip surface from external pollution and prevent
ED
PC3221GV
INTERNAL BLOCK DIAGRAM AND PIN CONNECTIONS
PRODUCT LINE-UP OF 5 V AGC AMPLIFIER
Part Number
I
CC
(mA)
23
23
36.5
33
G
MAX
(dB)
53
63
G
MIN
(dB)
0
PC3217GV
PC3218GV
PC3219GV
PC3221GV
Note
f
1
= 44 MHz, f
2
= 45 MHz, V
out
= 0.7 V
p-p
/tone, single-ended output
DI
S
2
CO
Data Sheet PU10171EJ03V0DS
NT
IN
U
GCR
(dB)
53
53
NF
IM
3
(dB)
6.5
3.5
9.0
4.2
(dBc)
Note
10
0
42.5
60
42.5
50
10
ED
Package
50
50
58
56
8-pin SSOP (4.45 mm (175))
PC3221GV
PIN EXPLANATIONS
Pin
No.
1
Applied
Pin Name
Voltage
(V)
V
CC
4.5 to 5.5
Pin
Voltage
(V)
Note
Function and Application
Power supply pin.
Internal Equivalent Circuit
2
INPUT1
1.29
Signal input pins to AGC amplifier.
This pin should be coupled with capacitor
for DC cut.
4
V
AGC
0 to V
CC
5
GND2
0
6
OUTPUT2
7
OUTPUT1
DI
S
8
CO
2.28
2.28
GND1
0
Ground pin.
Note
Pin voltage is measured at V
CC
= 5.0 V.
NT
IN
U
Gain control pin.
This pin’s bias govern the AGC output
level.
Minimum Gain at V
AGC
: 0 to 0.5 V
Maximum Gain at V
AGC
: 3 to 3.5 V
Recommended to use AGC voltage with
externally resister (example: 1 k).
Ground pin.
This pin should be connected to system
ground with minimum inductance.
Ground pattern on the board should be
formed as wide as possible.
Signal output pins of video amplifier.
This pin should be coupled with capacitor
for DC cut.
This pin should be connected to system
ground with minimum inductance.
Ground pattern on the board should be
formed as wide as possible.
All ground pins must be connected
together with wide ground pattern to
decrease impedance difference.
Data Sheet PU10171EJ03V0DS
3
INPUT2
1.29
ED
This pin should be externally equipped
with bypass capacitor to minimize ground
impedance.
3
PC3221GV
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Gain Control Voltage Range
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Symbol
V
CC
V
AGC
P
D
T
A
T
stg
T
A
= +25C
T
A
= +25C
T
A
= +85C
Note
Test Conditions
Ratings
6.0
0 to V
CC
250
Unit
V
V
mW
C
C
Note
Mounted on double-sided copper-clad 50
50
1.6 mm epoxy glass PWB
RECOMMENDED OPERATING RANGE
Parameter
Supply Voltage
Operating Ambient Temperature
Gain Control Voltage Range
Operating Frequency Range
Symbol
V
CC
T
A
Test Conditions
NT
IN
U
MIN.
4.5
TYP.
5.0
V
CC
= 4.5 to 5.5 V
40
0
+25
V
AGC
f
BW
10
45
Data Sheet PU10171EJ03V0DS
DI
S
4
CO
ED
40
to +85
55
to +150
MAX.
5.5
+85
3.5
100
Unit
V
C
V
MHz
PC3221GV
ELECTRICAL CHARACTERISTICS
(T
A
= +25C, V
CC
= 5 V, f = 45 MHz, Z
S
= 50
,
Z
L
= 250
,
single-ended output)
Parameter
DC Characteristics
Circuit Current
AGC Pin Current
AGC Voltage High Level
AGC Voltage Low Level
RF Characteristics
Maximum Voltage Gain
Middle Voltage Gain 1
Middle Voltage Gain 2
Minimum Voltage Gain
G
MAX
G
MID
1
G
MID
2
G
MIN
V
AGC
= 3.0 V, P
in
=
60
dBm
V
AGC
= 2.2 V, P
in
=
60
dBm
V
AGC
= 1.2 V, P
in
=
30
dBm
V
AGC
= 0.5 V, P
in
=
30
dBm
V
AGC
= 0.5 to 3.0 V
V
out
= 1.0 V
p-p
I
CC
I
AGC
V
AGC (H)
V
AGC (L)
No input signal
No input signal, V
AGC
= 3.5 V
@ Maximum gain
@ Minimum gain
Note 1
Note 1
Note 1
Note 1
26
33
16
41
50
mA
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
NT
IN
U
18
6
21
10
50
40
GCR
in
43
36
GCR
out
G
slope
Gain (@ V
AGC
= 2.2 V)
Gain (@ V
AGC
= 1.2 V)
Note 1
26.5
29.5
V
oclip
NF
V
AGC
= 3.0 V (@ Maximum gain)
Note 1
2.0
2.8
4.2
47
V
AGC
= 3.0 V (@ Maximum gain)
Note 3
f
1
= 44 MHz, f
2
= 45 MHz, Z
L
= 250
,
P
in
=
30
dBm/tone,
output)
V
out
= 0.7 V
p-p
/tone (@ single-ended
IM
3
1
43
Note 1
IM
3
2
f
1
= 44 MHz, f
2
= 45 MHz, Z
L
= 250
,
V
AGC
= 3.0 V (@ Maximum gain),
output)
V
out
= 0.7 V
p-p
/tone (@ single-ended
V
AGC
= 3.0 V, P
in
=
60
dBm,
50
56
Note 1
0.5
Note 1, 2
0
Gain Control Range (input prescribe)
Gain Control Range (output prescribe)
Gain Slope
Maximum Output Voltage
Noise Figure
3rd Order Intermodulation Distortion 1
3rd Order Intermodulation Distortion 2
Gain Difference of
CO
G
OUTPUT1 and OUTPUT2
G = G (@ P
out
1)
G (@ P
out
2)
Notes 1.
By measurement circuit 1
2.
By measurement circuit 2
3.
By measurement circuit 3
DI
S
Data Sheet PU10171EJ03V0DS
ED
A
V
V
3.0
0
3.5
0.5
57
60
63
dB
dB
dB
dB
dB
dB
dB/V
47.5
50.5
53.5
24
14
32.5
5.7
V
p-p
dB
dBc
dBc
+0.5
dB
5
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