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PDF SA8025A Data sheet ( Hoja de datos )
| Número de pieza | SA8025A | |
| Descripción | Low-voltage 1.8GHz fractional-N synthesizer | |
| Fabricantes | Philips | |
| Logotipo |  |
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INTEGRATED CIRCUITS
SA8025A
Low-voltage 1.8GHz fractional-N
synthesizer
Product specification
IC17 Data Handbook
1996 Oct 15
Philips
Semiconductors
1 page  
Philips Semiconductors
1.8GHz low-voltage Fractional-N synthesizer
Product specification
SA8025A
DC ELECTRICAL CHARACTERISTICS
VDD = VDDA = VCCP = 3V; TA = 25°C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
MIN TYP
VSUPPLY Recommended operating conditions
VCCP = VDD, VDDA ≥ VDD
2.7
ISTANDBY Total standby supply currents
EM = EA = 0, IRN = IRF = IRA = 0
50
Operational supply currents: I = IDD + ICCP + IDDA; IRN = 25µA, IRA = 25µA, (see Note 5)
IAUX
Operational supply currents
EM = 0, EA = 1
3.5
IMAIN
Operational supply currents
EM = 1, EA = 0
11.0
ITOTAL Operational supply currents
EM = EA = 1
13.5
Digital inputs CLK, DATA, STROBE
VIH High level input voltage range
VIL Low level input voltage range
Digital outputs LOCK
0.7xVDD
0
VOL Output voltage LOW
IO = 2mA
VOH Output voltage HIGH
IO = –2mA
VDD–0.4
Charge pumps: VDDA = 3V / IRX = 25µA or VDDA = 5V / IRX = 62.5µA, VPHX in range, unless otherwise specified.
|IRX|
Setting current range for any setting re-
sistor
2.7V < VDDA < 5.5V
4.5V < VDDA < 5.5V
25
62.5
VPHOUT Output voltage range
0.7
Charge pump PHA
|IPHA| Output current PHA
IRN = –62.5µA; VPHP = VDDA/213
IRN = –25µA; VPHP = VDDA/2
400
160
500
200
DIPHP_A
| IPHP_A|
Relative output current variation PHA
IRA = –62.5µA2, 13
∆IPHA_M Output current matching PHA pump
VDDA = 3V, IRA = 25µA
VDDA = 5V, IRA = 62.5µA
Charge pump PHP, normal mode NO TAG, 4, 6 VRF = VDDA
|IPHP_N| Output current PHP
IRN = –62.5µA; VPHP = VDDA/213
IRN = –25µA; VPHP = VDDA/2
440
175
2
550
220
DIPHP_N
IPHP_N
Relative output current variation PHP
IRN = –62.5µA2, 13
∆IPHP_N_M
Output current matching PHP
normal mode
VDDA = 3V, IRA = 25µA
VDDA = 5V, IRA = 62.5µA
Charge pump PHP, speed-up mode NO TAG, 4, 7 VRF = VDDA
|IPHP_S| Output current PHP
IRN = –62.5µA; VPHP = VDDA/213
IRN = –25µA; VPHP = VDDA/2
DIPHP_S
IPHP_S
Relative output current variation PHP
IRN = –62.5µA2, 13
∆IPHP_S_M
Output current matching PHP
speed-up mode
VDDA = 3V, IRA = 25µA
VDDA = 5V, IRA = 62.5µA
Charge pump PHI, speed-up mode NO TAG, 4, 8 VRF = VDDA
|IPHI|
Output current PHI
IRN = –62.5µA; VPHI = VDDA/213
IRN = –25µA; VPHI = VDDA/2
2.20
0.85
4.4
1.75
2
2.75
1.1
2
5.5
2.2
DIPHI
IPHI
Relative output current variation PHI
IRN = –62.5µA2, 13
∆IPHI_M Output current matching PHI pump
VDDA = 3V, IRA = 25µA
VDDA = 5V, IRA = 62.5µA
Fractional compensation PHP, normal mode NO TAG, 9 VRN = VDDA, VPHP = VDDA/2
IPHP_F_N
Fractional compensation output current
PHP vs FRD3
IRF = –62.5µA;FRD = 1 to 713
IRF = –25µA;FRD = 1 to 7
2
–625
–300
–400
–180
MAX
5.5
500
UNITS
V
µA
mA
mA
mA
VDD
0.3xVDD
0.4
V
V
V
V
VDDA–0.8
µA
V
600
µA
240
6%
±50
±65 µA
660
265 µA
6%
±50
±65 µA
3.30
1.35
6
±250
±300
mA
%
µA
6.6
2.65
8
±500
±600
mA
%
µA
–250
–50
nA
1996 Oct 15
5
5 Page 
Philips Semiconductors
1.8GHz low-voltage Fractional-N synthesizer
Product specification
SA8025A
LAST IN
WORD
MSB
D31
A1 0 NF
D23
A0 0 NF
NM1
NM1
B 1 0 00
NM4
CN
NM2
NM3
NM2
LSB
D0 FIRST IN
CN
D0
NM2
NM3
NM2
PR = “01”
PR ≠ “01”
CK CL PR
1996 Oct 15
C 1 0 01
NA
P
A
0
D 1 0 10
NR
FL
SM
E
M
SA
E MO
A ON
DG
TT
E 1 1 11 0 00
10
0
D23
ADDRESS BITS
TEST BITS
Figure 6. Serial Input Word Format
D0
REFERENCE
INPUT
DIVIDE BY NR
MAIN SELECT
SM = “00”
SM = “01”
SM = “10”
SM = “11”
MAIN
PHASE
DETECTOR
÷2 ÷2 ÷2
AUXILIARY SELECT
SA = “11”
SA = “10”
SA = “01”
AUXILIARY
PHASE
DETECTOR
SA = “00”
Figure 7. Reference Divider
11
SR00628
SR00629
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet SA8025A.PDF ] | |
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