sp5668 ETC-unknow, sp5668 Datasheet - Page 3

• Manufacturer Part Number: sp5668
• Description: 2.7ghz 3-wire Controlled Synthesiser
• Manufacturer: ETC-unknow

Electrical Characteristics (continued)
either production test or design. They apply within the specified ambient temperature and supply voltage ranges unless
otherwise stated.
** Note:
* REF output should be connected to V
Bus timing
Charge pump output
Current
Charge pump output
leakage
Drive output current
Drive output saturation
Voltage when disabled
External reference input
frequency
External reference input
amplitude
Crystal frequency
Recommended crystal
Series resistance
Reference oscillator bias
current
REF output voltage*
Phase detector comparison
frequency
Equivalent phase noise at
phase detector
RF division ratio
Reference division ratio
Output ports P0-P2
Lock output
T
AMB
Characteristic
Data set up , t
Data hold, t
Enable set up, t
Enable hold , t
Clock to enable, t
Sink current
Leakage current
Sink current
Leakage current
= 120 C to +80 C, V
1. -148dBc/Hz @ 1KHz offset with 1MHz comparison frequency measured at the phase comparator.
2. When external reference is used, a high signal level is required for low phase noise.
HD
SU
EH
ES
CE
CC
= +4.5 to +5.5V. Reference frequency = 4MHz. These characteristics are guaranteed by
4, 5, 6
Pin
7-9
16
16
10
1
1
3
3
3
3
CC
if unused
Min
300
600
300
600
300
200
200
240
480
10
10
1
2
4
1
Value
Typ
350
131071
262142
Max
350
500
200
20
12
10
10
10
4
dBc/Hz
mVp-p
mVp-p
Units
MHz
MHz
MHz
mA
mV
mA
mA
nA
ns
ns
ns
ns
ns
A
A
A
See Fig. 3
See Fig. 3
See Fig. 3
See Fig. 3
See Fig. 3
See Table 3, V
V
V
OS = 1
AC coupled sinewave
AC coupled sinewave
Applies to 4MHz crystal only.
"Parallel resonant" crystal. Figure
quoted is under all conditions
including start up.
See Fig. 11
AC coupled, 4MHz reference
frequency, See Fig.
See **Note
PE = 0, Prescaler disabled
PE = 1, Prescaler enabled
See Table 1
V
V
V
pin1
PIN16
PORT
PORT
PIN10
= 2V
= 0.7V
= 0.7V
= 13.2V
= 0.7V,
Conditions
pin1
=2V
'out of lock'
'in lock'
SP5668
3