FEATURES
ON-CHIP LOW DISTORTION AMPLIFIER:
IIP
3
= +2.5 dBm at minimum gain
WIDE AGC DYNAMIC RANGE:
GCR = 50 dB TYP
ON-CHIP VIDEO AMPLIFIER:
V
OUT
= 1.0 V
P-P
at single-ended output
SUPPLY VOLTAGE:
V
CC
= 5 V
PACKAGED IN 8 PIN SSOP SUITABLE FOR
SURFACE MOUNTING
LOW NOISE FIGURE:
4.2 dB TYP
NEC's GENERAL PURPOSE 5 V
AGC AMPLIFIER
UPC3221GV
California Eastern Laboratories
DESCRIPTION
NEC's UPC3221GV is a Silicon Monolithic IC designed for
use as an AGC Amplifier for digital CATV, cable modem and
IP telephony systems. This IC consists of a two stage gain
control amplifier and a fixed gain video amplifier. The device
provides a differential input and differential output for noise
performance, which eliminates shielding requirements.
The package is 8-pin SSOP (Shrink Small Outline Package)
suitable for surface mount.
This IC is manufactured using NEC's 10 GHz f
T
NESAT
AL silicon bipolar process. This process uses silicon nitride
passivation film. This material can protect chip surface from
external pollution and prevent corrosion/migration. Thus, this
IC has excellent performance, uniformity and reliability.
NEC's stringent quality assurance and test procedures ensure
the highest reliability and performance.
PACKAGE OUTLINE S08
All dimensions are typical unless specified otherwise.
8
7
6
3.0 MAX
5
1
2
3
4
N
3221
PART NUMBER
PACKAGE OUTLINE
UPC3221GV
S08
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
DC Characteristics
I
CC
Circuit Current
1
(no input signal)
mA
26
33
41
I
AGC
(H)
AGC Pin Current
1
, No input Signal, V
AGC
= 3.5 V
V
-
16
50
V
AGC
(H)
AGC Voltage High Level
1
, at Maximum gain
V
3.0
-
3.5
V
AGC
(L)
AGC Voltage Low Level
1
, at Minimum gain
V
0
-
0.5
RF Characteristics
G
MAX
Maximum Gain
1
, VAGC = 3.0 V, P
in
= -60 dBm
dB
57
60
63
G
MID
1
Middle Gain 1
1
, VAGC = 2.2 V, P
in
= -60 dBm
dB
47.5
50.5
53.5
ELECTRICAL CHARACTERISTICS
(T
A
= 25C, V
CC
= 5 V, Z
S
= 1K, Z
L
= 1K, f
IN
= 45 MHz, single-ended output), unless otherwise noted
1
2
3
4
5
6
7
8
AGC Cont.
AGCAMP
VideoAMP
V
CC
IN
1
IN
2
V
AGC
GND
1
OUT
1
OUT
2
GND
2
INTERNAL BLOCK DIAGRAM AND PIN
CONFIGURATION
APPLICATIONS
Digital CATV
Cable modem receivers
IP Telephony receivers
UPC3221GV
SYMBOLS PARAMETERS
UNITS RATINGS
V
CC
Voltage Current
V
6.0
V
AGC
(H) AGC Voltage
V
0 to V
CC
P
D
Power Dissipation
2
mW
250
T
A
Operating Ambient Temp.
1
C
-40 to +85
T
STG
Operating Ambient Temp.
1
C
-55 to +150
SYMBOL
PARAMETER
UNITS MIN TYP MAX
V
CC
Supply Voltage
V
4.5
5.0
5.5
T
A
Operating Ambient
Temp.
1
C
-40 +25 +85
V
AGC
Gain Control Voltage
Range
V
0
3.5
f
BW
Video Input Signal
Range
dBmV
10
45
100
ABSOLUTE MAXIMUM RATINGS
1,2
(T
A
= 25C, V
CC
= 5 V, Z
S
= 50 , unless otherwise specified)
RECOMMENDED
OPERATING CONDITIONS
Notes:
1. Operation in excess of any one of these parameters may result
in permanent damage.
2. Mounted on a 50 x 50 x 1.6 mm epoxy glass PWB, with copper
patterning on both sides, T
A
= 85C
Note:
1. V
CC
= 4.5 to 5.5 V
PART NUMBER
PACKAGE OUTLINE
UPC3221GV
S08
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
RF Characteristics
G
MID
2
Middle Gain 2
1
, VAGC = 1.2 V, PIN = -30 dBm
dB
18
21
24
G
MIN
Minimum Gain
1
, VAGC = 0.5 V, PIN = -30 dBm
dB
6
10
14
G
CRin
Gain Control Range Input
1
, V
AGC
= 0.5 to 3.0 V
dB
43
50
G
CRout
Gain Control Range Output
1
, V
out
= 1.0 V
p-p
dB
36
40
G
slope
Gain Control Slope
1
, Gain (at V
AGC
= 2.2 V) - Gain (at V
AGC
= 1.2 V)
dB
26.5
29.5
32.5
V
oclip
Maximum Output Voltage
1
, V
AGC
= 3.0 V at maximum gain
V
P-P
2.0
2.8
NF
Noise Figure
3
, V
AGC
= 3.0 V at maximum gain
dB
4.2
5.7
IM
3
1
Third Order Intermodulation Distortion
1
, f
IN1
= 44 MHz, f
IN2
= 45 MHz, PIN = -30 dBm/tone
,
Vout = 0.7 V
p-p
/tone at single ended output, Z
L
= 250
dBc
43
47
IM
3
2
Third Order Intermodulation Distortion
1
2, fI
N1
= 44 MHz, f
IN2
= 45 MHz, V
AGC
= 3.0 V at
maximum gain,
Vout = 0.7 V
p-p
/tone at single ended output, Z
L
= 250
dBc
50
56
G
Gain
1,2
, V
AGC
= 3.0 V, P
in
= -60 dBm, Z
L
= 250 , G = G at
,
P
out
1-G at P
out
2
dB
-0.5
0
+0.5
ELECTRICAL CHARACTERISTICS, cont.
(T
A
= 25C, V
CC
= 5 V, f
IN
= 45 MHz, Z
S
= 50, Z
L
= 250,single-ended output), unless otherwise noted
PART NUMBER
PACKAGE OUTLINE
UPC3221GV
S08
SYMBOLS PARAMETERS
UNITS
REFERENCE VALUE
NF2
GAIN Recuction
3
= -10 dB
dB
6.0
NF3
GAIN Recuction
3
= -20 dB
dB
9.5
V
out
P
in1
= -56 to -16 dBm
V
p-p
1.0
Z
in
Input Impedance
4
= 0.5 V, f = 45 MHz
0.9k - j1.4k
Z
out
Output Impedance
4
= 0.5 V, f = 45 MHz
9.0+j1.9
IIP
3
3rd Order Input Intercept Point
1
= V
AGC
= 0.5 V at minmum gain, f
1
= 44
MHz, f
2
= 45 MHz, Z
L
= 250 at single ended output
dBm
+2.5
STANDARD CHARACTERISTICS
(T
A
= 25C, V
CC
= 5 V, Z
S
= 50), unless otherwise noted
Note:
1. By measurement Circuit 1
2. By measurement Circuit 2
3. By measurement Circuit 3
4. By measurement Circuit 4
Pin No.
Name
Applied Voltage
(v)
Pin Voltage
(v)
1
Description
Internal Equivalent Circuit
1
V
CC
4.5 to 5.5
Power supply pin. This pin should be
externally equipped with bypass capaci-
tor to minimize ground impedance.
2
INPUT1
1.29
Signal input pins of AGC amplifier.
3
INPUT2
1.29
4
V
AGC
0 to V
CC
Gain control pin. This pin's bias govern
the AGC output level.
Minimuim Gain at V
AGC
= 0.5 V
Maximum Gain at V
AGC
= 3 to 3.5 V
Recommended to use by dividing AGC
voltage with external resistor (ex. 1k)
5
GND 2
0
Ground pin. This pin should be con-
nected to system ground with minimum
inductance. Ground pattern on the
board should be formed as wide as
possible.
6
OUTPUT2
2.28
Signal output pins of video amplifier
7
OUTPUT1
2.28
8
GND 1
0
Ground pin. This pin should be con-
nected to system ground with minimum
inductance. Ground pattern on the
board should be formed as wide as pos-
sible. All ground pins must be connect-
ed together with wide ground pattern to
decrease impedance difference.
PIN EXPLANATIONS
1
2
5
3
AGC
Control
1
4
5
AGC
Amp
6
8
1
7
Note:
1. P
IN
is measured at V
CC
= 5 V
UPC3221GV
UPC3221GV
MEASUREMENT CIRCUIT 1
MEASUREMENT CIRCUIT 2
Note: Balun Transformer : TOKO 617DB-1010 B4F (Double balanced type)
Note: Balun Transformer : TOKO 617DB-1010 B4F (Double balanced type)
Signal
Generator
Spectrum
Analyzer
50
1k
200
200
50
50
(V)
1
3
2
8
5
6
7
AGC Control
AGCAMP
VideoAMP
1
f
1
f
1
f
1
f
1
f
1
f
V
CC
V
AGC
(V)
4
Note
Signal
Generator
Spectrum
Analyzer
50
1k
200
200
50
(V)
1
3
2
8
5
6
7
AGC Control
AGCAMP
VideoAMP
1
f
1
f
1
f
1
f
1
f
1
f
V
CC
V
AGC
(V)
4
Note
UPC3221GV
MEASUREMENT CIRCUIT 3
MEASUREMENT CIRCUIT 4
Note: Balun Transformer : TOKO 617DB-1010 B4F (Double balanced type)
Network Analyzer
1k
50
50
(V)
1
3
2
8
5
6
7
AGC Control
AGCAMP
VideoAMP
1
f
1
f
1
f
1
f
1
f
1
f
V
CC
V
AGC
(V)
4
50
50
NF Meter
1k
200
200
50
50
(V)
1
3
2
8
5
6
7
AGC Control
AGCAMP
VideoAMP
1
f
1
f
1
f
1
f
1
f
1
f
V
CC
V
AGC
(V)
4
Note
Noise Source
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