|
|
Número de pieza | 9ZXL1930 | |
Descripción | 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE | |
Fabricantes | IDT | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de 9ZXL1930 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
No Preview Available ! 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
DATASHEET
9ZXL1930
Description
The 9ZXL1930 is a low power version of the Intel DB1900Z
Differential Buffer utilizing Low-Power HCSL (LP-HCSL)
outputs to reduce power consumption more than 50% from
the original IDT9ZX21901. It is suitable for PCI-Express
Gen1/2/3 or QPI/UPI applications, and uses a fixed external
feedback to maintain low drift for demanding QPI/UPI
applications.
Recommended Application
Buffer for Romley, Grantley and Purley Servers
Key Specifications
• Cycle-to-cycle jitter: < 50ps
• Output-to-output skew: <85ps
• Input-to-output delay: Fixed at 0 ps
• Input-to-output delay variation: <50ps
• Phase jitter: PCIe Gen3 < 1ps rms
• Phase jitter: QPI/UPI 9.6GB/s < 0.2ps rms
Features/Benefits
• Fixed feedback path; 0ps input-to-output delay
• 9 Selectable SMBus addresses; Multiple devices can
share same SMBus segment
• Separate VDDIO for outputs; allows maximum power
savings
• PLL or bypass mode; PLL can dejitter incoming clock
• Selectable PLL BW; minimizes jitter peaking in
downstream PLL's
• Spread spectrum compatible; tracks spreading input
clock for EMI reduction
• SMBus Interface; unused outputs can be disabled
• 100MHz & 133.33MHz PLL mode; Legacy QPI/UPI
support
• Differential outputs are Low/Low in power down;
Maximum power savings
Output Features
• 19 - LP-HCSL Differential Output Pairs
Block Diagram
DIF_IN
DIF_IN#
HIBW_BYPM_LOBW#
100M_133M#
CKPWRGD/PD#
SMB_A0_tri
SMB_A1_tri
SMBDAT
SMBCLK
Logic
Z-PLL
(SS Compatible)
IDT® 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
1
FBOUT_NC
DIF18
DIF0
9ZXL1930
REV D 112015
1 page 9ZXL1930
19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the 9ZXL1930. 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
3.3V Core Supply Voltage VDDA, R
3.3V Logic Supply Voltage VDD
I/O Supply Voltage
VDDIO
Input Low Voltage
VIL
Input High Voltage
VIH
Except for SMBus interface
Input High Voltage
VIHSMB
SMBus clock and data pins
Storage Temperature
Ts
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.
MIN
GND-0.5
-65
2000
TYP
UNITS NOTES
MAX
4.6 V 1,2
4.6 V 1,2
4.6 V 1,2
V1
VDD+0.5V
5.5V
V
V
1
1
150 °C 1
125 °C 1
V1
Electrical Characteristics–DIF_IN Clock Input Parameters
TA = TCOM; Supply Voltage VDD/VDDA = 3.3 V +/-5%, VDDIO = 1.05 to 3.3V +/-5%. See Test Loads for Loading Conditions
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS NOTES
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
150 900 mV 1
300 mV 1
0.4 8 V/ns 1,2
Input Leakage Current
Input Duty Cycle
IIN
dtin
VIN = VDD , VIN = GND
Measurement from differential wavefrom
-5
45
5 uA
55 % 1
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
125 ps 1
IDT® 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
5
9ZXL1930
REV D 112015
5 Page 9ZXL1930
19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
General SMBus Serial Interface Information
How to Write
• Controller (host) sends a start bit
• Controller (host) sends the write address
• IDT clock will acknowledge
• Controller (host) sends the beginning byte location = N
• IDT clock will acknowledge
• Controller (host) sends the 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 Write Operation
Controller (Host)
IDT (Slave/Receiver)
T starT bit
Slave Address
WR WRite
ACK
Beginning Byte = N
ACK
Data Byte Count = X
ACK
Beginning Byte N
ACK
O
OO
OO
O
Byte N + X - 1
ACK
P stoP bit
How to Read
• Controller (host) will send a start bit
• Controller (host) sends the write address
• IDT clock will acknowledge
• Controller (host) sends the beginning byte location = N
• IDT clock will acknowledge
• Controller (host) will send a separate start bit
• Controller (host) sends the read address
• 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
• Controller (host) will send a not acknowledge bit
• Controller (host) will send a stop bit
Index Block Read Operation
Controller (Host)
T starT bit
IDT (Slave/Receiver)
Slave Address
WR WRite
ACK
Beginning Byte = N
ACK
RT Repeat starT
Slave Address
RD ReaD
ACK
ACK
ACK
O
O
O
N Not acknowledge
P stoP bit
Data Byte Count=X
Beginning Byte N
O
O
O
Byte N + X - 1
IDT® 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE
11
9ZXL1930
REV D 112015
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet 9ZXL1930.PDF ] |
Número de pieza | Descripción | Fabricantes |
9ZXL1930 | 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE | IDT |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |