SP8808ADG [MITEL]
3.3GHz ± 8 Fixed Modulus Divider; 3.3GHz的± 8固定模数分频器
| 型号： | SP8808ADG |
| 厂家： | 
MITEL NETWORKS CORPORATION |
| 描述： | 3.3GHz ± 8 Fixed Modulus Divider |
| 文件： | 总5页 (文件大小：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP8808
3.3GHz ÷ 8 Fixed Modulus Divider
Advance Information
DS2113
Issue 7.3
june 1998
Features
Ordering Information
●
●
Very High Speed Operation 3.3GHz
Silicon Technology for low Phase Noise
(Typically better than -140dBc/Hz at 10kHz)
SP8808/A/DG Military temperature range
DES9157001/AC/DGAZ (SMD)
●
Specified Over the Full Military Temperature
Range
●
●
●
●
●
Low Power Dissipation 345mW (typ)
5V Single Supply Operation
High Input Sensitivity
Very Wide Operating Frequency Range
Available as DESC SMD 5962-9157001MPA
Thermal Characteristics
θja = 150°C/W
θjc = 50°C/W
Absolute Maximum Ratings
Description
Supply voltage VCC
Clock Input voltage
Storage temperature range
Junction temperature
6.5V
The SP8808 is one of a range of very high speed low
power prescalers for professional and military
applications. The device features a complementary
output stage with on chip current source for the emitter
follower outputs.
2.5V p-p
-65°C to +150°C
+175°C
SUPPLY
1
VCC
VREF (2V)
500
500
400
400
7
OUTPUT
÷8
6
OUTPUT
2
3
INPUT
INPUT
2.5mA
2mA
6.75mA
5
GND
Figure 1 SP8808 Block diagram
SP8808
Advance Information
V
1
2
3
4
8
7
6
5
NC
CC
INPUT
INPUT
NC
OUTPUT
OUTPUT
GND
DG8
Figure 2 Pin connections
Electrical Characteristics
Guaranteed over the temperature range T
-55°C to +125°C (see note) and supply voltage range 4.75V
amb
to 5.25V. Tested at T
= -55°C and +110°C, V = 4.75V and 5.25V.
amb
CC
Value
Conditions
Characteristic
Units
Pin
Min
Typ
Max
Supply current
Input sensitivity
0.65GHz to 2.8GHz
3.3GHz
VCC = 5V
RMS sinewave
measured in 50 ohm system.
See Figs. 3 & 4
1
2, 3
mA
69
85
mV
mV
Ω
175
400
Input impedance (series equivalent)
2, 3
50
2
pF
VCC = 5V
VCC = 5V load as Fig. 4
Vp-p
Vp-p
0.8
Output Voltage with fin =1000MHz
Output Voltage with fin = 3GHz
6, 7
6, 7
1
0.4
NOTE: Devices must be used with a suitable heatsink to maintain chip temperature below 175°C when
operating at T >110°C.
amb
500
400
300
200
100
Tested as
specified in Table
of electrical
*
GUARANTEED*
OPERATING
WINDOW
VIN (mV RMS
INTO 50 OHMS)
characteristics
1
2
3
4
FREQUENCY (GHz)
Figure 3 Typical input sensitivity
2
SP8808
Advance Information
POWER
METER
SIGNAL
GENERATOR
50Ω
0.1µ
FROM
OUTPUT
COAXIAL
SWITCH
50Ω
470
3p
+5V
1
2
8
7
1n
OUTPUT LOAD FOR
AMPLITUDE MEASUREMENTS
RATIO
COUNTER
SP8808
3
4
6
5
1n
0.1µ
Figure 4 Test circuit
Figure 5 Typical input impedance
3
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