UPB587B Datasheet, PDF (1/5 Pages) NEC – 1.0 GHz DIVIDE- BY- 2/4/8 PRESCALER

1.0 GHz DIVIDE- BY- 2/4/8 PRESCALER
UPB587B*
UPB587G
*B VERSION FOR HI-REL
APPLICATIONS ONLY
FEATURES
• HIGH FREQUENCY OPERATION TO 1 GHz
• LOW SUPPLY VOLTAGE: 2.2 V to 3.5 V
• LOW SUPPLY CURRENT: 5.5 mA
• AVAILABLE IN TAPE AND REEL
(G08 PACKAGE)
DESCRIPTION
The UPB587 series of devices are silicon bipolar digital
prescalers which can be operated in divide-by-two, divide-by-
four or divide-by-eight mode. They feature frequency re-
sponse to 1 GHz, and operate from a single 3 volt supply
drawing only 5.5 milliamps. The series is available in two
package styles: 8 lead ceramic flat pack (UPB587B), and an
8 pin plastic mini-flat package (UPB587G). Applications in-
clude: synthesizer for DBS receiver and telecommunication
applications. The low DC voltage required and power-saving
current draw make them ideal for hand-held, battery-powered
applications.
TEST CIRCUIT
C
VCC
C
1
8
C
INPUT
2
7
C
OUTPUT
C
3
6
M2 ^Re* Ro*
C
4
5
M1
C
C = 2200 pF
*Re and Ro used on test circuit as indicated below.
BLOCK DIAGRAM
VCC1
1
VCC2
8
IN 2
AMP
1/2
1/2
BYPASS 3
1/2
BUF
7 OUT
ELECTRICAL CHARACTERISTICS¹ (TA = -20 to +75°C, VCC = 2.2 to 3.5 V)
5
6
4
M1
M2
GND
SYMBOLS
ICC
fIN
PIN
VO
RTH (J-C)
RTH (J-A)
PART NUMBER
PACKAGE OUTLINE
PARAMETERS AND CONDITIONS
Supply Current
Frequency Response at PIN = -20 to 0 dBm,
Divide-by-eight
Divide-by-four
Divide-by-two
PIN = -18 to 0 dBm,
Divide-by-eight
Divide-by-four
Divide-by-two
Input Power at:
fIN = 50 to 100 MHz
fIN = 100 to 300 MHz, Divide-by-two
fIN = 100 to 600 MHz, Ddivide-by-four
fIN = 100 to 1000 MHz, Divide-by-eight
Output Voltage, at fIN = 0.5 GHz, PIN = -10 dBm, ZO = 200 Ω
Thermal Resistance, Junction to Case
(UPB587B)
Thermal Resistance, Junction to Ambient
(UPB587G)²
UNITS
mA
MHz
MHz
MHz
MHz
MHz
MHz
dBm
dBm
dBm
dBm
VP-P
°C/W
°C/W
UPB587B, UPB587G
BF08, G08
MIN
TYP
MAX
5.5
7.5
100
1000
100
600
100
300
50
1000
50
600
50
300
-18
0
-20
0
-20
0
-20
0
0.1
0.3
50
270
Notes:
1. VCC1 = 2.2 V to 3.5 V, VCC2 = 2.2 to 3.5 V.
2. Mounted on a 5 x 5 x 0.16 mm epoxy glass circuit board.
3. To improve impedance match to a 50 Ω load, a 1.2 KΩ shunt resistor on the output line is recommended.
California Eastern Laboratories