IDT2305NZ FIVE OUTPUT 3.3V CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
FIVE OUTPUT 3.3V CLOCK BUFFER
IDT2305NZ
FEATURES:
• One input to five output buffer/driver • Low power consumption for mobile applications: less than 32mA at 66.6MHz with unloaded outputs • 8.7ns max input-output delay • Buffers all frequencies from DC to 133.33MHz • Output-output skew < 250ps • 3.3V operation • High drive capability • Available in SOIC package
DESCRIPTION:
The IDT2305NZ is a low-cost buffer designed to distribute high-speed clocks in mobile PC systems and desktop PC systems. The IDT2305NZ operates at 3.3V with five outputs that can run up to 133.33MHz The IDT2305NZ is an 8-pin version of the IDT2309NZ. It is designed for low EMI and power optimization and consumes less than 32mA at 66.6MHz, making it ideal for the low power requirements of mobile systems.
FUNCTIONAL BLOCK DIAGRAM
BUF_IN OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
c 2009 Integrated Device Technology, Inc.
AUGUST 2009
DSC 6592/5
IDT2305NZ FIVE OUTPUT 3.3V CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
PIN CONFIGURATION
BUF_IN OUTPUT1 OUTPUT2 GND 1 2 3 4 8 7 6 5 OUTPUT5 OUTPUT4 VDD OUTPUT3
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VDD VI (2) VI IIK (VI < 0) IO (VO = 0 to VDD) VDD or GND TA = 55°C (in still air) TSTG Operating Temperature Operating Temperature
(3)
Rating Supply Voltage Range Input Voltage Range (REF) Input Voltage Range (except REF) Input Clamp Current Continuous Output Current Continuous Current Maximum Power Dissipation Storage Temperature Range Commercial Temperature Range Industrial Temperature Range
Max. –0.5 to +4.6 –0.5 to +5.5 –0.5 to VDD+0.5 –50 ±50 ±100 0.7 –65 to +150 0 to +70 -40 to +85
Unit V V V mA mA mA W °C °C °C
SOIC TOP VIEW
NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 3. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils.
PIN DESCRIPTION
Pin Name VDD GND BUF_IN OUTPUT[1:5] Pin Number 6 4 1 2, 3, 5, 7, 8 Functional Description 3.3V Digital Voltage Supply Ground Input clock Outputs
OPERATING CONDITIONS - COMMERCIAL
Symbol VDD TA CL CIN BUF_IN, OUTPUT[1:5] Supply Voltage Operating Temperature (Ambient Temperature) Load Capacitance, FOUT < 100MHz Load Capacitance 100MHz < FOUT < 133.33MHz Input Capacitance Operating Frequency Parameter Min. 3 0 — — — DC Max. 3.6 70 30 15 7 133.33 pF MHz Unit V
°C
pF
2
IDT2305NZ FIVE OUTPUT 3.3V CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
OPERATING CONDITIONS - INDUSTRIAL
Symbol VDD TA CL CIN BUF_IN, OUTPUT[1:5] Supply Voltage Operating Temperature (Ambient Temperature) Load Capacitance, FOUT < 100MHz Load Capacitance 100MHz < FOUT < 133.33MHz Input Capacitance Operating Frequency Parameter Min. 3 -40 — — — DC Max. 3.6 +85 30 15 7 133.33 pF MHz Unit V
°C
pF
DC ELECTRICAL CHARACTERISTICS - COMMERCIAL
Symbol VIL VIH IIL IIH VOL VOH IDD Parameter Input LOW Voltage Input LOW Current Input HIGH Current Output LOW Voltage(2) Output HIGH Voltage Supply Current
(2) (1) (1)
Conditions
Min. — 2
Max. 0.8 — 50 100 0.4 — 32
Unit V V µA µA V V mA
Input HIGH Voltage
VIN = 0V VIN = VDD IOL = 12mA IOH = -12mA Unloaded Outputs at 66.66MHz
— — — 2.4 —
NOTES: 1. BUF_IN input has a threshold voltage of VDD/2. 2. Parameter is guaranteed by design but not production tested.
DC ELECTRICAL CHARACTERISTICS - INDUSTRIAL
Symbol VIL VIH IIL IIH VOL VOH IDD Parameter Input LOW Voltage Input LOW Current Input HIGH Current Output LOW Voltage(2) Output HIGH Voltage Supply Current
(2) (1)
Conditions
Min. — 2
Max. 0.8 — 50 100 0.4 — 35
Unit V V µA µA V V mA
Input HIGH Voltage(1) VIN = 0V VIN = VDD IOL = 12mA IOH = -12mA Unloaded Outputs at 66.66MHz
— — — 2.4 —
NOTES: 1. BUF_IN input has a threshold voltage of VDD/2. 2. Parameter is guaranteed by design but not production tested.
SWITCHING CHARACTERISTICS - COMMERCIAL
Symbol t3 t4 t5 t6 DC Rise Time Fall Time Output to Output Skew Propagation Delay, BUF_IN Rising Edge to OUTPUT Rising Edge Duty Cycle Parameter(2) Conditions Measured between 0.8V and 2V Measured between 0.8V and 2V All outputs equally loaded Measured at VDD/2 Measured at VDD/2
(1)
Min. — — — 1 45
Typ. — — — 5 —
Max. 1.5 1.5 250 8.7 55
Unit ns ns ps ns %
NOTES: 1. All parameters specified with loaded outputs. 2. Parameter is guaranteed by design but not production tested.
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IDT2305NZ FIVE OUTPUT 3.3V CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
(1)
SWITCHING CHARACTERISTICS - INDUSTRIAL
Symbol t3 t4 t5 t6 DC Rise Time Fall Time Output to Output Skew Propagation Delay, BUF_IN Rising Edge to OUTPUT Rising Edge Duty Cycle Parameter(2)
Conditions Measured between 0.8V and 2V Measured between 0.8V and 2V All outputs equally loaded Measured at VDD/2 Measured at VDD/2
Min. — — — 1 45
Typ. — — — 5 —
Max. 1.5 1.5 250 8.7 55
Unit ns ns ps ns %
NOTES: 1. All parameters specified with loaded outputs. 2. Parameter is guaranteed by design but not production tested.
SWITCHING WAVEFORMS
1.4V
Output
1.4V t5
Output to Output Skew
Output
0.8V t3
2V
2V
0.8V t4
3.3V 0V
VDD/2
Input Output
t6 VDD/2
All Outputs Rise/Fall Time
Input to Output Propagation Delay
TEST CIRCUIT
VDD 0.01µF CLKOUT OUTPUTS CLOAD
GND
4
IDT2305NZ FIVE OUTPUT 3.3V CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XXXXX XX X Device Type Package Process
Blank I DC DCG
Commercial (0oC to +70oC) Industrial (-40oC to +85oC) Small Outline SOIC - Green
2305NZ-1H Five Output 3.3V Clock Buffer
CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138
for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 5
for Tech Support: clockhelp@idt.com
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