IDT 9DB106BFLF

DATASHEET
9DB106
Six Output Differential Buffer for PCIe Gen 2
Description
Features/Benefits
The 9DB106 zero-delay buffer supports PCIe Gen1 and Gen2
clocking requirements. The 9DB106 is driven by a differential SRC
output pair from an IDT CK410/CK505-compliant main clock
generator. It attenuates jitter on the input clock and has a selectable
PLL bandwidth to maximize performance in systems with or without
Spread-Spectrum clocking. An SMBus interface allows control of
the PLL bandwidth and bypass options, while 2 clock request
(CLKREQ#) pins make the 9DB106 suitable for Express Card
applications.
•
•
•
•
•
CLKREQ# pin for outputs 1 and 4/ supports Express Card
applications
PLL or bypass mode/PLL can dejitter incoming clock
Selectable PLL bandwidth/minimizes jitter peaking in
downstream PLL's
Spread Spectrum Compatible/tracks spreading input clock
for low EMI
SMBus Interface/unused outputs can be disabled
Recommended Applications
6 Output Differential Buffer for PCIe Gen 2
Key Specifications
Output Features
•
•
•
Cycle-to-cycle jitter < 50ps
Output-to-output skew < 50 ps
6 - 0.7V current mode differential output pairs (HCSL)
Functional Block Diagram
CLKREQ1#
CLKREQ4#
PCIEX1
CLK_INT
C LK_INC
SPREAD
COMPATIBLE
PLL
PCIEX4
PCIEX(0,2,3,5)
PLL_BW
SMBDAT
CONTROL
LOGIC
SMBCLK
IREF
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
1
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
PLL_BW
CLK_INT
CLK_INC
vCLKREQ1#
PCIEXT0
PCIEXC0
VDD
GND
PCIEXT1
PCIEXC1
PCIEXT2
PCIEXC2
VDD
SMBDAT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
9DB106
Pin Configuration
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDDA
GNDA
IREF
vCLKR EQ4#
PCIEXT5
PCIEXC5
VDD
GND
PCIEXT4
PCIEXC4
PCIEXT3
PCIEXC3
VDD
SMBCLK
Note:Pins preceeded by ' v ' have internal
120K ohm pull down resistors
28-pin SSOP & TSSOP
Power Groups
Pin Number
VDD
GND
7, 13, 16, 22
8,21
TBD
TBD
N/A
27
28
27
Description
PCI Express Outputs
SMBUS
IREF
Analog VDD & GND for PLL core
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
2
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
Pin Description
PIN #
PIN NAME
PIN TYPE
1
PLL_BW
IN
2
3
CLK_INT
CLK_INC
IN
IN
4
vCLKREQ1#
IN
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PCIEXT0
PCIEXC0
VDD
GND
PCIEXT1
PCIEXC1
PCIEXT2
PCIEXC2
VDD
SMBDAT
SMBCLK
VDD
PCIEXC3
PCIEXT3
PCIEXC4
PCIEXT4
GND
VDD
PCIEXC5
PCIEXT5
25
vCLKREQ4#
OUT
OUT
PWR
IN
OUT
OUT
OUT
OUT
PWR
I/O
IN
PWR
OUT
OUT
OUT
OUT
PWR
PWR
OUT
OUT
IN
DESCRIPTION
3.3V input for selecting PLL Band Width
0 = low, 1= high
True Input for differential reference clock.
Complementary Input for differential reference clock.
Output enable for PCI Express output pair 1.
0 = enabled, 1 =disabled
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
Power supply, nominal 3.3V
Ground pin.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
Power supply, nominal 3.3V
Data pin of SMBUS circuitry, 5V tolerant
Clock pin of SMBUS circuitry, 5V tolerant
Power supply, nominal 3.3V
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Ground pin.
Power supply, nominal 3.3V
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Output enable for PCI Express output pair 4.
0 = enabled, 1 =disabled
26
IREF
OUT
This pin establishes the reference for the differential current-mode
output pairs. It requires a fixed precision resistor to ground.
475ohm is the standard value for 100ohm differential impedance.
Other impedances require different values. See data sheet.
27
28
GNDA
VDDA
PWR
PWR
Ground pin for the PLL core.
3.3V power for the PLL core.
Note:
Pins preceeded by ' v ' have internal 120K ohm pull down resistors
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
3
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
Electrical Characteristics - Absolute Maximum Ratings
1
2
PARAMETER
SYMBOL
3.3V Core Supply Voltage
3.3V Logic Supply Voltage
Input Low Voltage
Input High Voltage
Input High Voltage
VDDA
VDD
VIL
VIH
VIHSMB
Storage Temperature
Junction Temperature
Input ESD protection
Ts
Tj
ESD prot
CONDITIONS
MIN
TYP
MAX
4.6
4.6
GND-0.5
Except for SMBus interface
SMBus clock and data pins
VDD+0.5V
5.5V
-65
Human Body Model
150
125
2000
UNITS
NOTES
V
V
V
V
V
1,2
1,2
1
1
1
1
1
1
°
C
°C
V
Guaranteed by design and characterization, not 100% tested in production.
Operation under these conditions is neither implied nor guaranteed.
Electrical Characteristics - Input/Supply/Common Output Parameters
TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%
PARAMETER
SYMBOL
CONDITIONS
MIN
Ambient Operating
Temperature
TCOM
TIND
Commmercial range
Industrial range
0
-40
70
85
°C
°C
1
1
Input High Voltage
VIH
3.3 V +/-5%
2
VDD + 0.3
V
1,2
Input Low Voltage
Input High Current
VIL
I IH
3.3 V +/-5%
VIN = VDD
VIN = 0 V; Inputs with no pullup resistors
VIN = 0 V; Inputs with pull-up
resistors
Full Active, CL = Full load;
all differential pairs tri-stated
VDD = 3.3 V
VSS - 0.3
-5
0.8
5
V
uA
1,2
1,2
-5
uA
1,2
-200
uA
1,2
150
40
105
7
5
4.5
mA
mA
MHz
nH
pF
pF
1
1
1
1
1
1.8
ms
1
30
33
kHz
1
2.7
5.5
0.4
V
V
1
1
mA
1
1000
ns
1
300
ns
1
9DB106
REV K 04/20/11
IIL1
Input Low Current
IIL2
Operating Supply Current
I DD3.3OP
Input Frequency
Pin Inductance
Fi
Lpin
CIN
COUT
Input Capacitance
Clk Stabilization
Input Spread Spectrum
Modulation Frequency
SMBus Voltage
Low-level Output Voltage
Current sinking at
VOL = 0.4 V
SCLK/SDATA
Clock/Data Rise Time
SCLK/SDATA
Clock/Data Fall Time
1
2
TSTAB
VDD
VOL
130
30
80
Logic Inputs
Output pin capacitance
From VDD reaching 3.1V and
input clock stable
Triangular Modulation
@ IPULLUP
I PULLUP
TRI2C
TFI2C
TYP
100
MAX
4
(Max VIL - 0.15) to
(Min VIH + 0.15)
(Min VIH + 0.15) to
(Max VIL - 0.15)
UNITS Notes
Guaranteed by design and characterization, not 100% tested in production.
Except differential input clock
IDT® Six Output Differential Buffer for PCIe Gen 2
4
9DB106
Six Output Differential Buffer for PCIe Gen 2
Electrical Characteristics - Clock Input Parameters
TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%
PARAMETER
SYMBOL
Input High Voltage DIF_IN
Input Low Voltage DIF_IN
Input Common Mode
Voltage - DIF_IN
CONDITIONS
Differential inputs
(single-ended measurement)
Differential inputs
(single-ended measurement)
VIHDIF
VILDIF
MIN
TYP
MAX
UNITS NOTES
600
800
1150
mV
1
VSS - 300
0
300
mV
1
VCOM
Common Mode Input Voltage
300
1000
mV
1
Input Amplitude - DIF_IN
VSWING
Peak to Peak value
300
1450
mV
1
Input Slew Rate - DIF_IN
dv/dt
Measured differentially
0.4
8
V/ns
1,2
Input Leakage Current
I IN
-5
5
uA
1
Input Duty Cycle
dtin
VIN = VDD , VIN = GND
Measurement from differential
wavefrom
45
55
%
1
Input Jitter - Cycle to
Cycle
J DIFIn
0
125
ps
1
1
2
Differential Measurement
Guaranteed by design and characterization, not 100% tested in production.
Slew rate measured through +/-75mV window centered around differential zero
Electrical Characteristics - PLL Parameters
TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%
Group
Parameter
Description
Min
Typ
Max
Units
Notes
PLL Jitter Peaking
jpeak-hibw
(PLL_BW = 1)
0
1
2.5
dB
1,4
PLL Jitter Peaking
jpeak-lobw
(PLL_BW = 0)
0
1
2
dB
1,4
PLL Bandwidth
PLL Bandwidth
pllHIBW
pllLOBW
(PLL_BW = 1)
(PLL_BW = 0)
PCIe Gen 1 phase jitter
(1.5 - 22 MHz)
PCIe Gen 2 jitter
(8-16 MHz, 5-16 MHz) Hi-Band >1.5MHz
(PLL_BW=1)
PCIe Gen 2 jitter
(8-16 MHz, 5-16 MHz) Hi-Band >1.5MHz
(PLL_BW=0)
PCIe Gen 2 jitter
(8-16 MHz, 5-16 MHz) Lo-Band <1.5MHz
2
0.4
2.5
0.5
3
1
MHz
MHz
1,5
1,5
40
108
ps
1,2,3
2.7
3.1
ps rms
1,2,3
2.2
3.1
ps rms
1,2,3
1.3
3
ps rms
1,2,3
Jitter, Phase
tjphasePLL
NOTES:
1. Guaranteed by design and characterization, not 100% tested in production.
2. See http://www.pcisig.com for complete specs
3. Device driven by 932S421BGLF or equivalent
4. Measured as maximum pass band gain. At frequencies w ithin the loop BW, highest point of magnification is called PLL jitter peaking.
5. Measured at 3 db dow n or half pow er point.
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
5
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
Electrical Characteristics - PCIEX 0.7V Current Mode Differential Outputs
TA = TCOM or TIND; VDD = 3.3 V +/-5%; CL =2pF, RS=33.2Ω, RP=49.9Ω, I REF = 475Ω
PARAMETER
SYMBOL
CONDITIONS
MIN
Current Source Output
Impedance
Zo1
VO = V x
3000
Voltage High
VHigh
Statistical measurement on single
ended signal using oscilloscope
math function.
660
Voltage Low
VLow
Max Voltage
Min Voltage
Crossing Voltage (abs)
Vovs
Vuds
Vcross(abs)
Measurement on single ended
signal using absolute value.
Crossing Voltage (var)
d-Vcross
Variation of crossing over all edges
Long Accuracy
ppm
Average period
Tperiod
Absolute min period
Rise Time
Fall Time
Rise Time Variation
Fall Time Variation
Tabsmin
tr
tf
d-tr
d-tf
tpd
tpdbyp
see Tperiod min-max values
100.00MHz nominal
100.00MHz spread
100.00MHz nominal/spread
VOL = 0.175V, V OH = 0.525V
V OH = 0.525V VOL = 0.175V
Input to Output Delay
Duty Cycle
dt3
Output-to-Output Skew
tsk3
Jitter, Cycle to cycle
t jcyc-cyc
PLL Mode.
Bypass mode
Measurement from differential
wavefrom
VT = 50%
PLL mode,
Measurement from differential
wavefrom
BYPASS mode as additive jitter
TYP
MAX
UNITS NOTES
<
850
1
1,3
mV
-150
150
1150
-300
250
9.9970
9.9970
9.8720
175
175
0
3.7
1,3
550
mV
1,3
1,3
1,3
140
mV
1,3
0
ppm
10.0030 ns
10.0533 ns
ns
700
ps
700
ps
125
ps
125
ps
150
ps
4.2
ns
1,2
2
2
1,2
1
1
1
1
1
1
45
mV
55
%
1
40
50
ps
1
35
50
ps
1
35
50
ps
1
1
Guaranteed by design and characterization, not 100% tested in production.
The 9DB106 does not add a ppm error to the input clock.
3
IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x I REF and VOH = 0.7V @ ZO=50Ω.
2
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
6
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
SRC Reference Clock
Common Recommendations for Differential Routing
Dimension or Value
L1 length, route as non-coupled 50ohm trace
0.5 max
L2 length, route as non-coupled 50ohm trace
0.2 max
L3 length, route as non-coupled 50ohm trace
0.2 max
Rs
33
Rt
49.9
Unit
inch
inch
inch
ohm
ohm
Figure
1
1
1
1
1
Down Device Differential Routing
L4 length, route as coupled microstrip 100ohm differential trace 2 min to 16 max
L4 length, route as coupled stripline 100ohm differential trace
1.8 min to 14.4 max
inch
inch
1
1
Differential Routing to PCI Express Connector
L4 length, route as coupled microstrip 100ohm differential trace 0.25 to 14 max
L4 length, route as coupled stripline 100ohm differential trace
0.225 min to 12.6 max
inch
inch
2
2
Figure 1: Down Device Routing
L2
L1
Rs
L4
L4'
L2'
L1'
Rs
Rt
HCSL Output Buffer
Rt
L3'
PCI Express
Down Device
REF_CLK Input
L3
Figure 2: PCI Express Connector Routing
L2
L1
Rs
L4
L4'
L2'
L1'
Rs
Rt
HCSL Output Buffer
Rt
L3'
IDT® Six Output Differential Buffer for PCIe Gen 2
PCI Express
Add-in Board
REF_CLK Input
L3
9DB106
7
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
Alternative Termination for LVDS and other Common Differential Signals (figure 3)
Vdiff
Vp-p
Vcm
R1
R2
R3
R4
Note
0.45v
0.22v
1.08
33
150
100
100
0.58
0.28
0.6
33
78.7
137
100
0.80
0.40
0.6
33
78.7
none
100
ICS874003i-02 input compatible
0.60
0.3
1.2
33
174
140
100
Standard LVDS
R1a = R1b = R1
R2a = R2b = R2
Figure 3
L2
L1
R3
R1a
R4
L4
L4'
L2'
L1'
R1b
R2a
HCSL Output Buffer
R2b
L3'
Down Device
REF_CLK Input
L3
Cable Connected AC Coupled Application (figure 4)
Component
Value
Note
R5a, R5b
8.2K 5%
R6a, R6b
1K 5%
Cc
0.1 µF
Vcm
0.350 volts
Figure 4
3.3 Volts
R5a
R5b
R6a
R6b
Cc
L4
L4'
Cc
IDT® Six Output Differential Buffer for PCIe Gen 2
PCIe Device
REF_CLK Input
9DB106
8
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
General SMBus serial interface information for the 9DB106
How to Write:
How to Read:
Controller (host) sends a start bit.
Controller (host) sends the write address D4 (h)
IDT clock will acknowledge
Controller (host) sends the begining byte location = N
IDT clock will acknowledge
Controller (host) sends the data byte count = X
IDT clock will acknowledge
Controller (host) starts sending Byte N through
Byte N + X -1)
• IDT clock will acknowledge each byte one at a time
• Controller (host) sends a Stop bit
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Index Block Read Operation
Index Block Write Operation
Controller (Host)
starT bit
T
Slave Address D4(h)
WRite
WR
Controller (host) will send start bit.
Controller (host) sends the write address D4 (h)
IDT clock will acknowledge
Controller (host) sends the begining byte
location = N
IDT clock will acknowledge
Controller (host) will send a separate start bit.
Controller (host) sends the read address D5 (h)
IDT clock will acknowledge
IDT clock will send the data byte count = X
IDT clock sends Byte N + X -1
IDT clock sends Byte 0 through byte X (if X(h)
was written to byte 8).
Controller (host) will need to acknowledge each byte
Controllor (host) will send a not acknowledge bit
Controller (host) will send a stop bit
Controller (Host)
T
starT bit
Slave Address D4(h)
WR
WRite
IDT (Slave/Receiver)
IDT (Slave/Receiver)
ACK
ACK
Beginning Byte = N
Beginning Byte = N
ACK
ACK
RT
Repeat starT
Slave Address D5(h)
RD
ReaD
Data Byte Count = X
ACK
Beginning Byte N
ACK
X Byte
ACK
Data Byte Count = X
ACK
Beginning Byte N
Byte N + X - 1
ACK
X Byte
ACK
P
stoP bit
Byte N + X - 1
N
P
IDT® Six Output Differential Buffer for PCIe Gen 2
Not acknowledge
stoP bit
9DB106
9
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
SMBusTable: Device Control Register, READ/WRITE ADDRESS (D4/D5)
Byte 0
Pin #
Name
Control Function Type
0
1
PWD
Enables SMBus
PLL controlled
PLL controlled
SW_EN
Control of bits
RW
by SMBus
1
Bit 7
by device pins
(1:0)
registers
RW
X
RESERVED
Bit 6
RESERVED
RW
X
Bit 5
RESERVED
RW
X
Bit 4
RESERVED
RW
X
Bit 3
RESERVED
RW
X
Bit 2
Selects PLL
PLL BW #adjust
RW
Low BW
High BW
1
Bit 1
Bandwidth
PLL bypassed PLL enabled
Bypasses PLL for
1
RW
PLL Enable
Bit 0
(fan out mode) (ZDB mode)
board test
SMBusTable: Output Enable Register
Byte 1
Pin #
Name
Control Function Type
RESERVED
RW
Bit 7
RESERVED
RW
Bit 6
24,23
PCIEX5
Output Control
RW
Bit 5
RESERVED
RW
Bit 4
18,17
PCIEX3
Output Control
RW
Bit 3
11,12
PCIEX2
Output Control
RW
Bit 2
RW
RESERVED
Bit 1
5,6
PCIEX0
Output Control
RW
Bit 0
SMBusTable: Function Select Register
Byte 2
Pin #
Name
Control Function Type
RESERVED
RW
Bit 7
RESERVED
RW
Bit 6
RESERVED
RW
Bit 5
RESERVED
RW
Bit 4
RESERVED
RW
Bit 3
RW
RESERVED
Bit 2
RESERVED
RW
Bit 1
RW
RESERVED
Bit 0
SMBusTable: Vendor & Revision ID Register
Byte 3
Pin #
Name
Control Function Type
RID3
R
Bit 7
RID2
R
Bit 6
REVISION ID
RID1
R
Bit 5
RID0
R
Bit 4
VID3
R
Bit 3
VID2
R
Bit 2
VENDOR ID
VID1
R
Bit 1
VID0
R
Bit 0
IDT® Six Output Differential Buffer for PCIe Gen 2
0
1
-
Disable
Enable
-
Disable
Disable
Enable
Enable
-
Disable
Enable
0
1
PWD
X
X
X
X
X
X
X
X
1
-
PWD
0
0
0
1
0
0
0
1
-
0
-
PWD
X
X
1
X
1
1
X
1
9DB106
10
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
SMBusTable: DEVICE ID
Byte 4
Pin #
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
Control Function Type
R
R
R
Device ID
R
= 06 Hex
R
R
R
R
0
1
PWD
0
0
0
0
0
1
1
0
-
SMBusTable: Byte Count Register
Pin #
Byte 5
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
-
Name
Control
Function
Type
0
1
PWD
BC7
BC6
BC5
BC4
BC3
BC2
BC1
BC0
Writing to this
register will
configure how
many bytes will be
read back, default
is 06 = 6 bytes.
RW
RW
RW
RW
RW
RW
RW
RW
-
-
0
0
0
0
0
1
1
0
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
11
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
209 mil SSOP
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
N
a
In Millimeters
COMMON DIMENSIONS
MIN
MAX
-2.00
0.05
-1.65
1.85
0.22
0.38
0.09
0.25
SEE VARIATIONS
7.40
8.20
5.00
5.60
0.65 BASIC
0.55
0.95
SEE VARIATIONS
0°
8°
In Inches
COMMON DIMENSIONS
MIN
MAX
-.079
.002
-.065
.073
.009
.015
.0035
.010
SEE VARIATIONS
.291
.323
.197
.220
0.0256 BASIC
.022
.037
SEE VARIATIONS
0°
8°
VARIATIONS
N
28
D mm.
MIN
9.90
D (inch)
MAX
10.50
MIN
.390
MAX
.413
Reference Doc.: JEDEC Publication 95, MO-150
10-0033
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
12
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
4.40 mm. Body, 0.65 mm. Pitch TSSOP
c
N
(173 mil)
L
E1
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
N
a
aaa
E
INDEX
AREA
1 2
α
D
A
A2
(25.6 mil)
In Millimeters
COMMON DIMENSIONS
MIN
MAX
-1.20
0.05
0.15
0.80
1.05
0.19
0.30
0.09
0.20
SEE VARIATIONS
6.40 BASIC
4.30
4.50
0.65 BASIC
0.45
0.75
SEE VARIATIONS
0°
8°
-0.10
In Inches
COMMON DIMENSIONS
MIN
MAX
-.047
.002
.006
.032
.041
.007
.012
.0035
.008
SEE VARIATIONS
0.252 BASIC
.169
.177
0.0256 BASIC
.018
.030
SEE VARIATIONS
0°
8°
-.004
VARIATIONS
A1
N
-C-
28
e
SEATING
PLANE
b
D mm.
MIN
9.60
D (inch)
MAX
9.80
MIN
.378
MAX
.386
Reference Doc.: JEDEC Publication 95, MO-153
aaa C
10-0035
Ordering Information
Part / Order Number
9DB106BFLF
9DB106BFLFT
9DB106BGLF
9DB106BGLFT
9DB106BFILF
9DB106BFILFT
9DB106BGILF
9DB106BGILFT
Shipping Packaging
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
Package
28-pin SSOP
28-pin SSOP
28-pin TSSOP
28-pin TSSOP
28-pin SSOP
28-pin SSOP
28-pin TSSOP
28-pin TSSOP
Temperature
0 to +70°C
0 to +70°C
0 to +70°C
0 to +70°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
"LF" after the package code are the Pb-Free configuration and are RoHS compliant.
"B" is the device revision designator (will not correlate to the datasheet revision).
IDT® Six Output Differential Buffer for PCIe Gen 2
9DB106
13
REV K 04/20/11
9DB106
Six Output Differential Buffer for PCIe Gen 2
Revision History
Rev.
Originator
B
RDW
Issue Date Description
1. Changed Output to Output skew from 30ps to 45ps.
2. Changed PLL mode jitter from 40ps to 35ps.
3. Changed Bypass mode additive jitter from 25ps to 35ps.
9/12/2005
4. Updated LF Ordering Information.
C
RDW
8/17/2006
Corrected Typo of SMBus Read/Write Address.
7
3/12/2007
Added SMBus Read/Write Table.
6
D
RDW
E
F
G
RDW
RDW
H
J
K
RDW
RDW
RDW
Page #
5,
8-9
1. Added Phase Noise Parameters, Updated input to output delay values.
2. PLL BW moved to PLL parameters table.
8/6/2007 3. Added terminations tables.
12/14/2007 Updated SMBus serial Interface Information.
4/1/2010 Updated ordering info for Rev B
1. Updated DS to include I-temp specs and ordering information
2. Updated electrical tables to reflect common set of numbers for I-temp and C-temp
3. Converted all references of ICS to IDT
9/15/2010 4. Corrected placement of AC coupling caps in Figure 4
1/27/2011 Updated Termination Figure 4.
4/20/2011 1. Changed pull down indicator from '**" to " v " to correct pin description of CLKREQ# pins.
6-8
9
13
8
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