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Número de pieza | 9DBV0741 | |
Descripción | 7-output 1.8V HCSL Fanout Buffer | |
Fabricantes | IDT | |
Logotipo | ||
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No Preview Available ! 7-output 1.8V HCSL Fanout Buffer
w/Zo=100ohms
9DBV0741
DATASHEET
Description
The 9DBV0741 is a member of IDT's Full-Featured PCIe
family. The device has 7 output enables for clock
management, and 3 selectable SMBus addresses. It has
integrated terminations for direct connection to 100ohm
transmission lines.
Recommended Application
PCIe Gen1-3 clock distribution in Storage, Networking,
Compute, Consumer
Output Features
• 7 – 1-200MHz Low-Power (LP) HCSL DIF pairs
w/ZO=100
• Easy AC-coupling to other logic families, see IDT
application note AN-891
Key Specifications
• Additive cycle-to-cycle jitter <5ps
• Output-to-output skew < 60ps
• Additive phase jitter is <100fs rms for PCIe Gen3
• Additive phase jitter <300fs rms (12kHz-20MHz @125MHz)
Block Diagram
vOE(6:0)#
7
CLK_IN
CLK_IN#
vSADR
^CKPWRGD_PD#
SDATA_3.3
SCLK_3.3
CONTROL
LOGIC
Features/Benefits
• 100ohm direct connect; saves 28 resistors and 48mm2
compared to standard HCSL
• 41mW typical power consumption; eliminates thermal
concerns
• Outputs can optionally be supplied from any voltage
between 1.05V and 1.8V; maximum power savings
• OE# pins; support DIF power management
• HCSL-compatible differential input; can be driven by
common clock sources
• SMBus-selectable features allow optimization to customer
requirements
• Slew rate for each output; allows tuning for various line
lengths
• Differential output amplitude; allows tuning for various
application environments
• 1MHz to 200MHz operating frequency
• 3.3V tolerant SMBus interface works with legacy controllers
• Selectable SMBus addresses; multiple devices can easily
share an SMBus segment
• Device contains default configuration; SMBus interface not
required for device operation
• Space saving 40-pin 5x5mm VFQFPN; minimal board
space
DIF6
DIF5
DIF4
DIF3
DIF2
DIF1
DIF0
9DBV0741 REVISION B 03/28/16 1 ©2016 Integrated Device Technology, Inc.
1 page 9DBV0741 DATASHEET
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the 9DBV0741. These ratings, which are standard
values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other
conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the
recommended operating temperature range.
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
VDDx
Applies to VDD, VDDA and VDDIO
Input Voltage
VIN
Input High Voltage, SMBus VIHSMB
Storage Temperature
Ts
SMBus clock and data pins
Junction Temperature
Tj
Input ESD protection ESD prot
Human Body Model
1Guaranteed by design and characterization, not 100% tested in production.
2 Operation under these conditions is neither implied nor guaranteed.
3 Not to exceed 2.5V.
MIN
-0.5
-0.5
-65
2000
TYP
MAX
2.5
VDD+0.5
3.6
150
125
UNITS NOTES
V 1,2
V 1,3
V1
°C 1
°C 1
V1
Electrical Characteristics–Clock Input Parameters
TA = TCOM or TIND; Supply Voltages per normal operation conditions, See Test Loads for Loading Conditions
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Input Crossover Voltage -
DIF_IN
Input Swing - DIF_IN
Input Slew Rate - DIF_IN
VCROSS
VSWING
dv/dt
Cross Over Voltage
Differential value
Measured differentially
150
300
0.4
Input Leakage Current
Input Duty Cycle
IIN
dtin
VIN = VDD , VIN = GND
Measurement from differential wavefrom
-5
40
Input Jitter - Cycle to Cycle JDIFIn
Differential Measurement
1 Guaranteed by design and characterization, not 100% tested in production.
2Slew rate measured through +/-75mV window centered around differential zero
0
MAX
900
8
5
60
125
UNITS NOTES
mV 1
mV
V/ns
uA
%
ps
1
1,2
1
1
REVISION B 03/28/16
5 7-OUTPUT 1.8V HCSL FANOUT BUFFER W/ZO=100OHMS
5 Page 9DBV0741 DATASHEET
SMBus Table: Output Enable Register 1
Byte 0
Name
Control Function
Type
0
Bit 7
DIF OE5
Output Enable
RW Low/Low
Bit 6
DIF OE4
Output Enable
RW Low/Low
Bit 5
Reserved
Bit 4
DIF OE3
Output Enable
RW Low/Low
Bit 3
DIF OE2
Output Enable
RW Low/Low
Bit 2
DIF OE1
Output Enable
RW Low/Low
Bit 1
Reserved
Bit 0
DIF OE0
Output Enable
RW Low/Low
1. A low on these bits will overide the OE# pin and force the differential output Low/Low
SMBus Table: PLL Operating Mode and Output Amplitude Control Register
Byte 1
Name
Control Function
Type
0
Bit 7
Reserved
Bit 6
Reserved
Bit 5
DIF OE6
Output Enable
RW Low/Low
Bit 4
Reserved
Bit 3
Reserved
Bit 2
Reserved
Bit 1
Bit 0
AMPLITUDE 1
AMPLITUDE 0
Controls Output Amplitude
RW
RW
00 = 0.6V
10= 0.8V
1. A low on the DIF OE bit will overide the OE# pin and force the differential output Low/Low
SMBus Table: DIF Slew Rate Control Register
Byte 2
Name
Control Function
Bit 7
SLEWRATESEL DIF5
Adjust Slew Rate of DIF5
Bit 6
SLEWRATESEL DIF4
Adjust Slew Rate of DIF4
Bit 5
Reserved
Bit 4
SLEWRATESEL DIF3
Adjust Slew Rate of DIF3
Bit 3
SLEWRATESEL DIF2
Adjust Slew Rate of DIF2
Bit 2
SLEWRATESEL DIF1
Adjust Slew Rate of DIF1
Bit 1
Reserved
Bit 0
SLEWRATESEL DIF0
Adjust Slew Rate of DIF0
Type
RW
RW
RW
RW
RW
RW
0
Slow setting
Slow setting
Slow setting
Slow setting
Slow setting
Slow setting
SMBus Table: DIF Slew Rate Control Register
Byte 3
Name
Control Function
Bit 7
Reserved
Bit 6
Reserved
Bit 5
Reserved
Bit 4
Reserved
Bit 3
Reserved
Bit 2
Reserved
Bit 1
Reserved
Bit 0
SLEWRATESEL DIF6
Adjust Slew Rate of DIF6
Type
RW
0
2.0V/ns
Byte 4 is Reserved and reads back 'hFF
1
OE# pin control
OE# pin control
OE# pin control
OE# pin control
OE# pin control
OE# pin control
Default
1
1
1
1
1
1
1
1
1
OE# pin control
01 = 0.7V
11 = 0.9V
Default
0
1
1
0
1
1
1
0
1
Fast setting
Fast setting
Fast setting
Fast setting
Fast setting
Fast setting
Default
1
1
1
1
1
1
1
1
1
3.0V/ns
Default
1
1
0
0
0
1
1
1
REVISION B 03/28/16
11 7-OUTPUT 1.8V HCSL FANOUT BUFFER W/ZO=100OHMS
11 Page |
Páginas | Total 17 Páginas | |
PDF Descargar | [ Datasheet 9DBV0741.PDF ] |
Número de pieza | Descripción | Fabricantes |
9DBV0741 | 7-output 1.8V HCSL Fanout Buffer | IDT |
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