CY28400-2 Datasheet, PDF (1/16 Pages) SpectraLinear Inc – 100 MHz Differential Buffer for PCI Express and SATA

CY28400-2
100-MHz Differential Buffer for PCI Express
and SATA
Features
• CK409 and CK410 companion buffer
• Four differential 0.7V clock output pairs
• OE_INV input for inverting OE, PWRDWN, and
SRC_STP active levels
• Individual OE controls
• Low CTC jitter (< 50 ps)
• Programmable bandwidth
• SRC_STP power management control
• SMBus Block/Byte/Word Read and Write support
• 3.3V operation
• PLL Bypass-configurable
• Divide by 2 programmable outputs
• 28-pin SSOP and TSSOP packages
Functional Description
The CY28400-2 is a differential buffer and serves as a
companion device to the CK409 or CK410 clock generator.
The device is capable of distributing the Serial Reference
Clock (SRC) in PCI Express and SATA implementations.
Block Diagram
Pin Configuration
OE_INV
OE_1, OE_6
SRC_STP
PWRDWN
SCLK
SDATA
PLL/BYPASS#
SRCT_IN
SRCC_IN
HIGH_BW#
Output
Control
SMBus
Controller
DIFT1
DIFC1
DIFT2
DIFC2
Output
Buffer
DIFT5
DIFC5
DIV
PLL
DIFT6
DIFC6
VDD
SRCT_IN
SRCC_IN
VSS
VDD
DIFT1
DIFC1
OE_1
DIFT2
DIFC2
VDD
PLL/BYPASS#
SCLK
SDATA
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
28 SSOP/TSSOP
VDD_A
VSS_A
IREF
OE_INV
VDD
DIFT6
DIFC6
0E_6
DIFT5
DIFC5
VDD
HIGH_BW#
SRC_STP
PWRDWN
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document #: 38-07722 Rev *C
Revised October 27, 2005