IDTCV104B 반도체 회로 부품 판매점
CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
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 Integrated Device Technology |
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IDTCV104B
CLOCKGENERATORFORDESKTOPPCPLATFORMS
CLOCK GENERATOR FOR
DESKTOP PC PLATFORMS
COMMERCIALTEMPERATURERANGE
IDTCV104B
PRELIMINARY
FEATURES:
• 4 PLL architecture
• Linear frequency programming
• Independent frequency programming and SSC control
• Band-gap circuit for differential output
• High power-noise rejection ratio
• 66MHz to 533MHz CPU frequency
• VCO frequency up to 1.1G
• Support index block read/write, single cycle index block read
• Programmable REF, 3V66, PCI, 48MHz I/O drive strength
• Programmable 3V66 and PCI Skew
• Available in SSOP package
DESCRIPTION:
IDTCV104B is a 48 pin clock generation device for desktop PC platforms.
This chip incorporates four PLLs to allow independent generation of CPU, AGP/
PCI, SRC, and 48MHz clocks. The dedicated PLL for Serial ATA clock
provides high accuracy frequency. This device also implements Band-gap
referenced IREF to reduce the impact of VDD variation on differential outputs,
which can provide more robust system performance.
Static PLL frequency divide error can be as low as 36 ppm, providing high
accuracy output clock. Each CPU, AGP/PCI, SRC clock has its own Spread
Spectrum selection.
KEY SPECIFICATION:
• CPU/SRC CLK cycle to cycle jitter < 125ps
• SATA CLK cycle to cycle jitter < 125ps
• PCI CLK cycle to cycle jitter < 250ps
• Static PLL frequency divide error as low as 36ppm
FUNCTIONAL BLOCK DIAGRAM
X1 XTAL
Osc Amp
X2
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PLL1
SSC
EasyN
Programming
CPU CLK
Output Buffers
IREF
SDATA
SCLK
SM Bus
Controller
PLL2
SSC
EasyN
Programming
3V66/PCI
Output Buffers
CPU[1:0]
REF 3.1.0
PCI[5:0], PCIF[2:0]
3V66[3:0]
DataShee
VTT_PWRGD
FS[1:0]
SEL24_48#
Watch Dog
Timer
Control
Logic
PLL3
SSC
PLL4
SRC CLK
Output Buffer
IREF
48MHz
Output Buffer
SRC
48MHz[1:0]
24 - 48MHz
RESET#
OUTPUT TABLE
CPU (Pair)
3V66 3V66/VCH
PCI
PCIF
2 3 1 63
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The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
© 2003 Integrated Device Technology, Inc.
REF
3
1
48MHz
2
24 - 48MHz
1
SRC (Pair)
1
Reset#
1
SEPTEMBER 2003
DSC-6382/16
www.DataSheet4U.com
IDTCV104B
CLOCKGENERATORFORDESKTOPPCPLATFORMS
COMMERCIALTEMPERATURERANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Min Max Unit
*FS1/REF0
*FS0/REF1
VDD_REF
X1
X2
1
2
3
4
5
48 REF3
47 VDDA
46 VSS
45 IREF
44 VSS
VDDA 3.3V Core Supply Voltage
4.6 V
VDDIN
3.3V Logic Input Supply Voltage GND - 0.5
4.6
V
TSTG Storage Temperature
–65 +150 °C
TAMBIENT Ambient Operating Temperature
0
+70 °C
TCASE
Case Temperature
+115 °C
ESD Prot Input ESD Protection
2000
V
VSS 6
43 CPUT1
Human Body Model
PCIF0
PCIF1
PCIF2
VDD_PCI
VSS
7
8
9
10
11
42 CPUC1
41 VDD_CPU
40 CPUT0
39 CPUC0
38 VSS
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
PCI0 12
37 SRCT
PCI1 13
36 SRCC
PCI2 14
35 VDD_SRC
PCI3 15
34 *VTT_PWRGD#
VDD_PCI
VSS
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PCI4
PCI5
*RESET#/PD#
**SEL24/24_48MHz
48MHz1
16
17
18
19
20
21
22
33 *SDATA
HW FREQUENCY SELECTION
32 *SCLK
FS1.0
CPU
AGP
PCI
N Resolution
31 3V66_0
00 100 66.66 33.3
0.223721591
30 3V66_1
01 200 66.66 33.3
0.447443181
29 VSS
DataSheet4U.c1o0m 133.33 66.66 33.3
0.298295454
28 VDD_3V66
11
166.67
66.66
33.3
0.397727272
27 3V66_2
DataShee
48MHz0 23
26 3V66_3/VCH
VSS 24
25 VDD48
* = ~ 130KΩ internal pull-up.
** = ~ 130KΩ internal pull-down.
SSOP
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제조업체: Integrated Device Technology
( idt )
IDTCV104B data
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[ IDTCV104B.PDF ]
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
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