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UPC2798GR-A

P1-P3P4-P6P7-P9P10-P12P13-P15
FEATURES
• RF/LO FREQUENCY RANGE: 30-250 MHz
• ON CHIP VCO
• LOW DISTORTION AGC AMPLIFIER:
-9 dBm IIP
3 @ MIN Gain
• ON CHIP VIDEO AMP: 3.0 Vp-p (V
CC = 5 V)
• SMALL 20 PIN SSOP PACKAGE
• AVAILABLE ON TAPE AND REEL
250 MHz QAM IF DOWNCONVERTER
UPC2798GR
DESCRIPTION
NEC's UPC2798GR is a Silicon MMIC Downconverter manu-
factured with the NESAT™III silicon bipolar process. This
product consists of an input AGC amplifier, mixer, local oscil-
lator, and video amplifier. It is housed in a small 20 pin SSOP
package. The device is designed for use as an IF downconverter
for digital CATV settops and cable modems utilizing QAM
modulation.
NEC's stringent quality assurance and test procedures ensure
the highest reliability and performance.
California Eastern Laboratories
PART NUMBER UPC2798GR
PACKAGE OUTLINE S20
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
Total Block (VCC1 = 5 V, VCC2 = 5 V, RL = 1 kΩ)
ICC Circuit Current (no input signal) mA 24.0 35.5 45.0
CGMAX1 Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B shorted dB 68.0 74.0 76.0
CGMAX2 Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B open dB 58.0
CGMIN1 Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B shorted dB 32.0 39.0 43.0
CGMIN2 Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B open dB 22.0
IIP3 Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B shorted dBm -14.0
IIP3 Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B open dBm -8.0
Total Block (VCC1 = 5 V, VCC2 = 9 V, RL = 1 kΩ)
ICC Circuit Current (no input signal) mA 32.0 47.0 60.0
CGMAX1 Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B shorted dB 72.0 78.5 81.0
CGMAX2 Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B open dB 59.0
CGMIN1 Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B shorted dB 43.5
CGMIN2 Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B open dB 22.5
IIP3 Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B open dBm -7.5
ICC Circuit Current (no input signal) mA 15.0 23.0 28.0
fRF RF Input Frequency Range MHz 30 250
fOSC OSC Frequency Range MHz 30 250
fIF IF Output Frequency Range MHz DC 150
CGMAX Maximum Conversion Gain, VAGC = 4.0 V dB 25
CGMIN Minimum Conversion Gain, VAGC = 1.0 V dB -7
GCR AGC Dynamic Range, VAGC = 1.0 to 4.0 V dB 26 32
NF Noise Figure, SSB, VAGC = 4.0 V (MAX Gain) dB 9
VAGC (H) AGC Voltage High, at MAX Gain V 4.0
VAGC (L) AGC Voltage Low, at MIN Gain V 1.0
AGC IIP3 AGC Input Intercept Point, at MIN Gain dBm -9
ELECTRICAL CHARACTERISTICS (TA = 25°C, RF = 45 MHz, LO = 55 MHz, PLO = -10 dBm, unless otherwise specified)
AGC Amplifier and Mixer Block (VCC1 = 5 V)
SYMBOL PARAMETER UNITS MIN TYP MAX
VCC1 Supply Voltage 1 V 4.5 5.0 5.5
VCC2 Supply Voltage 2 V 4.5 5.0 10.0
TA1 Operating Temp. Range 1
*
°C -40 +25 +85
TA2 Operating Temp. Range 2
**
°C -40 +25 +75
SYMBOLS PARAMETERS UNITS RATINGS
VCC1 Supply Voltage 1
(Mixer Block) V 6.0
VCC2 Supply Voltage 2
(Video Amp Block) V 6.0
PD Power Dissipation,
TA = 85˚C
2
mW 430
TOP Operating Temperature °C -40 to +85
TSTG Storage Temperature °C -55 to +150
ABSOLUTE MAXIMUM RATINGS
1
(TA = 25°C)
RECOMMENDED
OPERATING CONDITIONS
Notes:
* @ VCC1 = VCC2 = 4.5 to 5.5 V
** @ VCC1 = 4.5 to 5.5 V, VCC2 = 4.5 to 10.0 V
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.
SYMBOLS PARAMETERS UNITS RATINGS
VCC1 Supply Voltage 1
(Mixer Block) V 6.0
VCC2 Supply Voltage 2
(Video Amp Block) V 11.0
PD Power Dissipation,
TA = 75˚C
2
mW 500
TOP Operating Temperature °C -40 to +75
TSTG Storage Temperature °C -55 to +150
PART NUMBER UPC2798GR
PACKAGE OUTLINE S20
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
Video Amp Block (VCC2 = 5 V, differential, RL = 1 kΩ)
I
CC Circuit Current (no input signal) mA 9.0 12.5 17.0
V
OUT Output Voltage Vp-p 3.0
G1 Differential Gain 1, pins G1A and G1B shorted, V
OUT = 3.0 Vp-p V/V 200
G2 Differential Gain 2, pins G1A and G1B open, VOUT = 3.0 Vp-p V/V 26
Video Amp Block (VCC2 = 9 V, differential, RL = 1 kΩ)
ICC Circuit Current (no input signal) mA 17.0 24.0 32.0
V
OUT Output Voltage Vp-p 3.0
G1 Differential Gain 1, Pins G1A and G1B shorted V/V 385
G2 Differential Gain 2, Pins G1A and G1B open V/V 28.5
Video Amp Block (V
CC2 = 5 V, single ended, RL = 50 Ω)
AVS1 Single-ended Gain, pins G1A - G1B shorted dB 40.0
AVS2 Single-ended Gain, pins G1A - G1B open dB 22.5
IIP3 Input Intercept Point, pins G1A - G1B open, f1 = 9 MHz, f2 = 11 MHz dBm -11.5
Video Amp Block (VCC2 = 9 V, single ended, RL = 50 Ω)
AVS1 Single-ended Gain, pins G1A - G1B shorted dB 45.0
AVS2 Single-ended Gain, pins G1A - G1B open dB 23.5
IIP3 Input Intercept Point, pins G1A - G1B open, f1 = 9 MHz, f2 = 11 MHz dBm -5.0
Video Amp Block (VCC2 = 5 or 9 V, common, RL = 1 k Ω)
BWG1 Bandwidth 1, G1 MHz 50
BWG2 Bandwidth 2, G2 MHz 50
RIN 1 Input Resistance 1, G1 kΩ 3.5
RIN 2 Input Resistance 2, G2 kΩ 9.7
CIN Input Capacitance, CIN pF 1.6
CMRR Common Mode Rejection Ratio, VCM = 1.0 Vp-p, ƒ = 100 kHz dB 80
PSRR Power Supply Rejection Ratio dB 70
τR Rise Time ns 2.6
τD Propagation Delay Time ns 4.4
UPC2798GR
ELECTRICAL CHARACTERISTICS (TA = 25°C, RF = 45 MHz, LO = 55 MHz, PLO = -10 dBm, unless otherwise specified)
UPC2798GR
TYPICAL CHARACTERISTICS (by measurement circuit 1: AGC Amp and Mixer Block)
CIRCUIT CURRENT vs.
SUPPLY VOLTAGE
CONVERSION GAIN vs.
INPUT FREQUENCY
CONVERSION GAIN vs.
IF FREQUENCY
NOISE FIGURE vs. AGC VOLTAGE
CONVERSION GAIN vs.
AGC VOLTAGE
THIRD ORDER INTERMODULATION
LEVEL AND OUTPUT POWER vs.
INPUT POWER
Supply Voltage, V
CC (V)
Input Frequency, f
RF (MHz)
IF Frequency, fIF (MHz)
AGC Voltage, VAGC (V)
AGC Voltage, VAGC (V)
Input Power, PIN (dBm)
Circuit Current, I
CC
(mA)
Conversion Gain, CG (dB)
Conversion Gain, CG (dB)
Noise Figure, NF (dB)
Conversion Gain, CG (dB)
Output Power, P
OUT
(dBm)
50
2
4
68
10
12
10
20
30
40
0
0
Video Amp
Mixer
+AGC+VCO
no input
signal
T
A
= 25˚C
V
AGC
= 0 V
Total
P
RF
= 60 dBm
f
OSC
= f
RF
+5 MH
Z,
P
OSC
= -10 dBm
V
CC
= 5 V, T
A
= 25˚C
20
10
0
30
-10
-20
0
200
250 300
-30
150
50
100
V
AGC
= 4.0 V
V
AGC
= 2.6 V
V
AGC
= 0.0 V
20
10
0
-10
-20
-30
0
30 60
90
120 150
180
30
f
RF
= 45 MH
Z
, P
RF
= -60 dBm
f
OSC
= 50~200 MH
Z
, P
OSC
= -10 dBm
V
CC
= 5 V, T
A
= 25˚C
V
AGC
= 4.0 V
V
AGC
= 2.6 V
V
AGC
= 0.0 V
20
10
0
0
1
23
4
5
30
V
CC
= 5 V
f
RF
= 100 MH
Z
f
OSC
= 120 MH
Z
P
OSC
= -10 dBm
T
A
= 25˚C
DSB
0
30
20
10
0
-10
1
2
3
4
5
V
CC = 5 V
f
RF = 45 MHZ
PRF = -60 dBm
f
OSC = 50 MHZ
POSC = -10 dBm
T
A = 25˚C
-20
-30
-40
-50
-60
-70
-80
-90
-60 -50 -40
-30 -20 -10
0
-10
V
CC
= 5 V
V
AGC
= 0 V
f
RF1
= 44 MH
Z
f
RF2
= 46 MH
Z
f
OSC
= 55 MH
Z
P
OSC
= -10 dBm
T
A
= 25˚C
P
OUT
IM
3
P1-P3P4-P6P7-P9P10-P12P13-P15

UPC2798GR-A

Mfr. #:
Buy UPC2798GR-A
Manufacturer:
CEL
Description:
Up-Down Converters 250MHz IF Downconvrt
Lifecycle:
New from this manufacturer.
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