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SP5848QP1T の電気的特性と機能

SP5848QP1TのメーカーはMitel Networksです、この部品の機能は「2.2/1.3GHz 3-Wire Bus Dual Low Phase Noise PLL」です。


製品の詳細 ( Datasheet PDF )

部品番号 SP5848QP1T
部品説明 2.2/1.3GHz 3-Wire Bus Dual Low Phase Noise PLL
メーカ Mitel Networks
ロゴ Mitel Networks ロゴ 




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SP5848QP1T Datasheet, SP5848QP1T PDF,ピン配置, 機能
Preliminary Information
SP5848
SP5848
2.2/1.3GHz 3-Wire Bus Dual Low Phase Noise PLL
Preliminary Information
DS5076
Issue 1.6
October 1999
Features
G Dual independent PLL frequency synthesisers in a
single package, optimised for double conversion
cable tuners, offering improved application
G 2.2GHz up-synthesiser optimised for low phase
noise up to comparison frequencies of 4MHz
G 1.3GHz down-synthesiser optimised for low phase
noise AND small step size
G Common reference oscillator and divider with
independently selectable ratios for each
synthesiser
G 10:1 programmable charge pump current ratio in up
synthesiser
G 3-Wire bus programmable, each synthesiser
indepently addressable
G Low power consumption, typ 100mW at 5V
G ESD protection, (Normal ESD handling procedures
should be observed)
Applications
Ordering Information
SP5848/KG/QP1S
SP5848/KG/QP1T
Description
The SP5848 is a dual PLL frequency synthesizer
controlled by a 3-wire bus optimised for application in
double conversion tuners.
Each synthesiser loop within the SP5848 is
independently addressable and contains an RF
programmable divider, phase/frequency detector and
charge pump/loop amplifier section; a common
reference frequency oscillator and divider chain is
provided, whose ratios for each loop are independently
programmable.
Both synthesisers are optimised for low phase noise
performance and in addition synthesiser 2 is capable of
operation with a low comparison frequency.
G TV, VCR, and cable tuning systems
RF1 INPUT
DATA
CLOCK
ENABLE
RF 2 INPUT
16/17
11 BIT
COUNT
4 BIT
COUNT
DATA
INTERFACE
15 BIT LATCH
16 BIT LATCH
2 BIT
LATCH
1 BIT
LATCH
2 BIT
LATCH
5 BIT
LATCH
29 DIVIDE
16/17
4 BIT
COUNT
12 BIT
COUNT
Figure 1 Block Diagram
PUMP 1
DRIVE 1
PORT P0
PORT P1
PUMP 2
DRIVE 2
1

1 Page





SP5848QP1T pdf, ピン配列
Preliminary Information
SP5848
Electrical Characteristics (continued)
Tamb= -40oC to +80oC, Vcc = 4.5 to 5.5 V, These characteristics are guaranteed by either production test or design.
They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Characteristic
Pin
Synthesiser 2 (DOWN)
RF2 input voltage
RF2 input impedance
RF2 division ratio
Reference division 2
ratio
Comparison frequency 2
5,6
5,6
Equivalent phase noise
at phase detector 2
Charge pump 2 output
current
Charge pump 2 output
leakage
Charge pump 2 drive
output curent
Data, clock and enable
Input high voltage
Input low voltage
Input current
hysterysis
Clock rate
Bus timing -
Data set up
Data hold
Enable setup
Enable hold
Clock to enable
Reference Oscillator
Crystal frequency
External reference input
frequency
External reference drive
2
2
3
12,11,13
11
8, 9
8
8
Outputs ports P0 - P1
sink current
leakage current
1, 20
Min
30
240
16.25
0.5
3
0
-10
300
600
300
600
300
2
2
0.2
2
Value
Typ
-144
±3
0.8
Max
300
65535
4000
±10
Vcc
0.7
10
500
16
20
0.5
10
Units
Conditions
mVrms 80 -1300MHz
See Figure 5
See Table 2
KHz
dBc/Hz
nA
Phase noise degrades above
250KHz
SSB, within loop bandwidth, all
comparison frequencie up to
250KHz
See Table 4
Vpin 2=2V
Vpin2 = 2V
mA Vpin 3 = 0.7V
V
V
µA All input conditions
Vpp
KHz
ns
ns
ns
ns
ns
MHz
MHz
Vpp
mA
µA
See Figure 6 for application
Sinewave coupled through
10nF blocking capacitor
Sinewave coupled through 10nF
blocking capacitor
See note 1
Vport = 0.7V
Vport = Vcc
Note 1 Output ports high impedance on power up, with data, clock and enable at logic 0
3


3Pages


SP5848QP1T 電子部品, 半導体
SP5848
Preliminary Information
j1
j0.5
j2
j0.2
j5
0 0.2 0.5 1 2 5
80MHz
2j0.2
1GHz
1·7GHz
2·2GHz
2j5
2j0.5
2j1
2j2
Figure 4 Synthesiser 1 RF input impedance
j1
j0.5
j2
j0.2
j5
0 0.2 0.5 1 2 5
80MHz
0·5GHz
0·9GHz
2j5
2j0.2
1·3GHz
2j0.5
2j1
2j2
Figure 5 Synthesiser 2 RF input impedance
6

6 Page



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共有リンク

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部品番号部品説明メーカ
SP5848QP1T

2.2/1.3GHz 3-Wire Bus Dual Low Phase Noise PLL

Mitel Networks
Mitel Networks


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