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PDF UPC3219GV Data sheet ( Hoja de datos )

Número de pieza UPC3219GV
Descripción GENERAL PURPOSE 5 V AGC AMPLIFIER
Fabricantes NEC 
Logotipo NEC Logotipo



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GENERAL PURPOSE UPC3219GV
5 V AGC AMPLIFIER
FEATURES
• ON-CHIP LOW DISTORTION AMPLIFIER:
IIP3 = -1 dBm at minimuim gain
• WIDE AGC DYNAMIC RANGE:
GCR = 42 dB TYP
• ON-CHIP VIDEO AMPLIFIER:
VOUT = 1.0 VP-P at single-ended output
• SUPPLY VOLTAGE:
VCC = 5 V
• PACKAGED IN 8 PIN SSOP SUITABLE FOR
SURFACE MOUNTING
APPLICATIONS
• Digital CATV
• Cable modem receivers
• IP Telephony receivers
DESCRIPTION
The UPC3219GV 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 fT NESATΙΙ
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 en-
sure the highest reliability and performance.
VOLTAGE GAIN vs.
AUTOMATIC GAIN CONTROL VOLTAGE
45
40
35
30
25
20
15
10
5
0
-5
-10
012345
Automatic Gain Control Voltage, VAGC (V)
PACKAGE OUTLINE S08
8 765
3219
N
1 2 34
3.0 MAX
All dimensions are typical unless specified otherwise.
ELECTRICAL CHARACTERISTICS
(TA = 25°C, VCC = 5 V, ZS = 1K, ZL = 1K, fIN = 45 MHz, single-ended output), unless otherwise noted
PART NUMBER
PACKAGE OUTLINE
UPC3219GV
S08
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN TYP MAX
DC Characteristics
ICC Circuit Current (no input signal)
RF Characterisitics
BW Frequency Bandwidth, VAGC = 3 V1
GMAX
Maximum Gain , VAGC = 4.5 V
GMIN
Minimum Gain, VAGC = 0.5 V
GCR
Gain Control Range, VAGC = 0.5 to 4.5 V
NFAGC
Noise Figure, VAGC = 4.5 V at MAX Gain
VOUT
Output Voltage, Single Ended Output
IM3 Third Order Intermodulation Distortion, fIN1 = 44 MHz, fIN2 = 45 MHz,
VIN = 30 dBmV per tone2
mA
MHz
dB
dB
dB
dB
VP-P
dBc
28 35 42
100
39 42 45
-4 0 4
35 42
– 9 10.5
1.0
55
Note:
1. -3dB with respect to 10 MHz gain
2. VAGC is adjusted to establish VOUT = 1.0 VP-P per tone
California Eastern Laboratories

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UPC3219GV pdf
PIN EXPLANATIONS
Pin No.
Name
Applied Voltage
(v)
Pin Voltage
(v)1
Description
Internal Equivalent Circuit
1 VCC 4.5 to 5.5
2 INPUT1
Power supply pin. This pin should be externally
equipped with bypass capacitor to minimize
ground impedance.
1.45 Signal input pins of AGC amplifier.
1
3 INPUT2
1.45
AGC
Control
25
3
4 VAGC
0 to VCC
5 GND 2
0
6 OUTPUT2
Gain control pin. This pin's bias govern the
AGC output level.
Minimuim Gain at VAGC = 0.5 V
Maximum Gain at VAGC = 4.5 V
Recommended to use by dividing AGC voltage
with external resistor (ex. 100k)
1
4
5
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.
2.2 Signal output pins of video amplifier
1
AGC
Amp
7 OUTPUT1
8 GND 1
0
Note:
1. PIN is measured at VCC = 5 V
2.2
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. All ground pins must be
connected together with wide ground pattern
to decrease impedance difference.
8
7
6

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