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PDF 83905I Data sheet ( Hoja de datos )
| Número de pieza | 83905I | |
| Descripción | 1:6 Crystal Interface to LVCMOS/ LVTTL Fanout Buffer | |
| Fabricantes | IDT | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 83905I (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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Low Skew, 1:6 Crystal Interface to
LVCMOS/ LVTTL Fanout Buffer
83905I
Datasheet
General Description
The 83905I is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer.
The low impedance LVCMOS/LVTTL outputs are designed to
drive 50 series or parallel terminated transmission lines. The
effective fanout can be increased from 6 to 12 by utilizing the
ability of the outputs to drive two series terminated lines.
The 83905I is characterized at full 3.3V, 2.5V, and 1.8V, mixed
3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating supply
modes. Guaranteed output and part-to-part skew characteristics
along with the 1.8V output capabilities makes the 83905I ideal for
high performance, single ended applications that also require a
limited output voltage.
Features
• Six LVCMOS / LVTTL outputs
• Outputs able to drive 12 series terminated lines
• Crystal Oscillator Interface
• Crystal input frequency range: 10MHz to 40MHz
• Output skew: 80ps (maximum)
• RMS phase jitter @ 25MHz, (100Hz – 1MHz): 0.26ps (typical),
VDD = VDDO = 2.5V
Offset
Noise Power
100Hz.................-129.7 dBc/Hz
1kHz ...................-144.4 dBc/Hz
10kHz .................-147.3 dBc/Hz
100kHz ...............-157.3 dBc/Hz
• 5V tolerant enable inputs
• Synchronous output enables
• Operating power supply modes:
Full 3.3V, 2.5V, 1.8V
Mixed 3.3V core/2.5V output operating supply
Mixed 3.3V core/1.8V output operating supply
Mixed 2.5V core/1.8V output operating supply
• -40°C to 85°C ambient operating temperature
• Lead-free (RoHS 6) packaging
Pin Assignments
XTAL_OUT
ENABLE2
GND
BCLK0
VDDO
BCLK1
GND
BCLK2
1
2
3
4
5
6
7
8
16 XTAL_IN
15 ENABLE1
14 BCLK5
13 VDDO
12 BCLK4
11 GND
10 BCLK3
9 VDD
16-Lead TSSOP
4.4mm x 5.0mm x 0.925mm
package body
G Package
Top View
©2016 Integrated Device Technology, Inc.
Block Diagram
XTAL_IN
XTAL_OUT
ENABLE 1
ENABLE 2
SYNCHRONIZE
SYNCHRONIZE
BCLK0
BCLK1
BCLK2
BCLK3
BCLK4
BCLK5
1 Revision C September 28, 2016
1 page  
83905I Datasheet
Table 4D. Power Supply DC Characteristics, VDD = 3.3V ± 5%, VDDO = 2.5V ± 5%, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
Typical
Maximum
VDD
VDDO
IDD
IDDO
Power Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE [1:2] = 00
ENABLE [1:2] = 00
3.135 3.3 3.465
2.375 2.5 2.625
10
4
Units
V
V
mA
mA
Table 4E. Power Supply DC Characteristics, 3.3V ± 5%, VDDO = 1.8V ± 0.2V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
Typical
Maximum
VDD
VDDO
IDD
IDDO
Power Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE [1:2] = 00
ENABLE [1:2] = 00
3.135 3.3 3.465
1.6 1.8 2.0
10
3
Units
V
V
mA
mA
Table 4F. Power Supply DC Characteristics, VDD = 2.5V ± 5%, VDDO = 1.8V ± 0.2V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
Typical
Maximum
VDD
VDDO
IDD
IDDO
Power Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE [1:2] = 00
ENABLE [1:2] = 00
2.375 2.5 2.625
1.6 1.8 2.0
8
3
Units
V
V
mA
mA
©2016 Integrated Device Technology, Inc.
5
Revision C September 28, 2016
5 Page 
Parameter Measurement Information
1.65V±5%
VDD,
VDDO
SCOPE
Qx
GND
-1.65V±5%
3.3V Core/3.3V LVCMOS Output Load AC Test Circuit
0.9V±0.1V
VDD,
VDDO
SCOPE
Qx
GND
-0.9V±0.1V
1.8V Core/1.8V LVCMOS Output Load AC Test Circuit
2.4V±0.9V
0.9V±0.1V
VDD
VDDO
GND
SCOPE
Qx
83905I Datasheet
1.25V±5%
VDD,
VDDO
SCOPE
Qx
GND
-1.25±5%
2.5V Core/2.5V LVCMOS Output Load AC Test Circuit
2.05V±5%
1.25V±5%
VDD
VDDO
GND
SCOPE
Qx
-1.25±5%
3.3V Core/2.5V LVCMOS Output Load AC Test Circuit
1.6V±0.025%
0.9V±0.1V
VDD
VDDO
GND
SCOPE
Qx
-0.9V±0.1V
3.3V Core/1.8V LVCMOS Output Load AC Test Circuit
-0.9V±0.1V
2.5V Core/1.8V LVCMOS Output Load AC Test Circuit
©2016 Integrated Device Technology, Inc.
11
Revision C September 28, 2016
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet 83905I.PDF ] | |
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