參數(shù)資料
型號: SP8715
廠商: Mitel Networks Corporation
英文描述: 1100MHz Very Low Current Multi-Modulus Divider
中文描述: 至1100MHz非常低的電流多模數(shù)分頻器
文件頁數(shù): 3/10頁
文件大?。?/td> 312K
代理商: SP8715
3
SP8715
Electrical Characteristics (Continued)
Guaranteed over the following conditions (unless otherwise stated):
V
CC
=+2.7V to +5.25V (with respect to V
EE
), Output load (pin 4) = 10pF, T
amb
= -40
°
C to +85
°
C (note 2)
Characteristic
Units
Conditions
Output level (pin 4)
500
600
mV p-p
Modulus set-up time, t
s
(notes 5,6,8)
Modulus hold time, t
h
Power down time, t
pd
Power down recovery time, t
pu
(notes 7,8)
20
ns
RF input = 1GHz
(notes 6,8)
1
ns
RF input = 1GHz
(notes 7,8)
10
μ
s
μ
s
See Figure 9
6
See Figure 9
NOTES
2.
3.
4.
All electrical testing is performed at +85
°
C.
Typical values are measured at +25
°
C and V
CC
= +5V.
Modulus Control and Ratio Select are high impedance inputs which can be driven directly by standard
CMOS outputs.
Modulus control is latched at the end of the previous cycle.
See Figure 4.
See Figure 8.
These parameters are not tested but are guaranteee by design.
The ratio select pin is not intended to be switched dynamically.
5.
6.
7.
8.
9.
Value
Min.
Typ.
Max.
OPERATING NOTES
The RF inputs are biased internally and are normally
coupled to the signal source with suitable capaitors.
The output stage has a novel design and is intended
to drive a CMOS synthesiser input. External pull-down
resistors or circuits are not required. The SP8715 is
not suitable for driving TTL or similar devices.
The device will operate down to DC frequencies for
non-sinusoidal signals provided that the input slew
rate is better than 100V/
μ
s.
POWER DOWN (pin 7) is connected internally to a
pull-down resistor. If the battery economy facility is not
used, pin 7 should be either left unconnected or
connected to V
EE
.
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