MAX3627CTJ+T

MAX3627CTJ+T Datasheet

MAX3627

Part	Datasheet
MAX3627CTJ+T	MAX3627CTJ+T (pdf)

Related Parts	Information
MAX3627EVKIT+	MAX3627EVKIT+
MAX3627CTJ+	MAX3627CTJ+

PDF Datasheet Preview
+3.3V, Low-Jitter, Precision Clock Generator with Multiple Outputs MAX3627 The MAX3627 is a low-jitter, precision clock generator optimized for network applications. The device integrates a crystal oscillator and a phase-locked loop PLL to generate high-frequency clock outputs for Ethernet applications. Maxim’s proprietary PLL design features ultra-low jitter 0.4psRMS and excellent power-supply noise rejection PSNR , minimizing design risk for network equipment. The MAX3627 contains seven LVDS outputs and one LVCMOS output. The output frequencies are selectable among 125MHz, 156.25MHz, and 312.5MHz. Ethernet Networking Equipment Typical Operating Circuit +3.3V ±5% 0.1uF 0.1uF 0.1uF 10uF 0.01uF VDDA VDD VDDO_DIFF OPEN OSC_IN OE MAX3627 33pF 25MHz CL = 18pF 27pF X_OUT X_IN VDD PLL_BP GND, OPEN, OR VDD FSELA GND, OPEN, OR VDD FSELB VDDO_SE 125MHz/156MHz/312.5MHz Z0 = 50Ω 100Ω ASIC Z0 = 50Ω 125MHz/156MHz/312.5MHz Z0 = 50Ω 100Ω ASIC Z0 = 50Ω 125MHz/156MHz/312.5MHz Z0 = 50Ω 100Ω ASIC Z0 = 50Ω Ordering Information PART TEMP RANGE PIN-PACKAGE MAX3627CTJ+ 0°C to +70°C 32 TQFN-EP* +Denotes a lead Pb -free/RoHS-compliant package. EP = Exposed pad. Pin Configuration GND Q7 VDDO_SE Q6 VDDO_DIFF Q5 TOP VIEW 24 23 22 21 20 19 18 17 VDD 25 16 OE PLL_BP 26 15 FSELB VDDA 27 14 Q4 FSELA 28 OSC_IN 29 MAX3627 13 Q4 12 VDDO_DIFF X_IN 30 11 Q3 X_OUT 31 GND 32 10 Q3 9 GND 1 2345678 Q0 GND Q1 VDDO_DIFF Q2 THIN QFN 5mm x 5mm EXPOSED PAD CONNECTED TO GROUND. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at MAX3627 +3.3V, Low-Jitter, Precision Clock Generator with Multiple Outputs ABSOLUTE MAXIMUM RATINGS Supply Voltage Range at VDD, VDDA, VDDO_SE, VDDO_DIFF to +4.0V Voltage Range at Q0, Q0, Q1, Q1, Q2, Q2, Q3, Q3, Q4, Q4, Q5, Q5, Q6, Q6, Q7, PLL_BP, FSELA, FSELB, OE, OSC_IN ...-0.3V to VDD + 0.3V Voltage Range at X_IN to +1.2V Voltage Range at X_OUT .................................-0.3V to VDD - 0.6V Continuous Power Dissipation TA = +70°C 32-Pin TQFN-EP derate 34.5mW/°C above +70°C ..2759mW Operating Junction Temperature Range ...........-55°C to +150°C Storage Temperature Range .............................-65°C to +160°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VDD = +3.0V to +3.6V, TA = 0°C to +70°C, unless otherwise noted. Typical values are at VDD = +3.3V, TA = +25°C, unless otherwise noted. When using X_IN, X_OUT input, no signal is applied at OSC_IN. When PLL is enabled, PLL_BP = high-Z or high. When PLL is bypassed, PLL_BP = low. Note 1 PARAMETER CONDITIONS Power-Supply Current Note 2 PLL enabled PLL bypassed LVDS OUTPUTS Q0, Q0, Q1, Q1, Q2, Q2, Q3, Q3, Q4, Q4, Q5, Q5, Q6, Q6 Output High Voltage Output Low Voltage Differential Output Voltage Amplitude \|VOD\| Figure 1 Change in Magnitude of Differential Output for Complementary States Output Offset Voltage Change in Magnitude of Output Offset Voltage for Complementary States Differential Output Impedance Output Current Shorted together Short to ground Note 3 Clock Output Rise/Fall Time Output Duty-Cycle Distortion tr, tf 20% to 80%, RL = PLL enabled PLL bypassed Note 4 LVCMOS/LVTTL OUTPUT Q7 Output Frequency Output High Voltage Output Low Voltage Output Rise/Fall Time IOH = -12mA IOL = 12mA tr, tf 20% to 80% at 125MHz Note 5

PDF Datasheet Preview

+3.3V, Low-Jitter, Precision Clock Generator with Multiple Outputs

MAX3627

The MAX3627 is a low-jitter, precision clock generator optimized for network applications. The device integrates a crystal oscillator and a phase-locked loop PLL to generate high-frequency clock outputs for Ethernet applications.

Maxim’s proprietary PLL design features ultra-low jitter 0.4psRMS and excellent power-supply noise rejection PSNR , minimizing design risk for network equipment.

The MAX3627 contains seven LVDS outputs and one LVCMOS output. The output frequencies are selectable among 125MHz, 156.25MHz, and 312.5MHz.

Ethernet Networking Equipment

Typical Operating Circuit
+3.3V ±5%
0.1uF
0.1uF
0.1uF
10uF 0.01uF

VDDA

VDD VDDO_DIFF

OPEN

OSC_IN OE

MAX3627
33pF
25MHz CL = 18pF
27pF

X_OUT X_IN

VDD PLL_BP

GND, OPEN, OR VDD

FSELA

GND, OPEN, OR VDD

FSELB

VDDO_SE 125MHz/156MHz/312.5MHz

Z0 = 50Ω
100Ω

ASIC

Z0 = 50Ω
125MHz/156MHz/312.5MHz

Z0 = 50Ω
100Ω

ASIC

Z0 = 50Ω
125MHz/156MHz/312.5MHz

Z0 = 50Ω
100Ω

ASIC

Z0 = 50Ω
Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX3627CTJ+
0°C to +70°C
32 TQFN-EP*
+Denotes a lead Pb -free/RoHS-compliant package. *EP = Exposed pad.

Pin Configuration

GND Q7 VDDO_SE Q6 VDDO_DIFF Q5

TOP VIEW
24 23 22 21 20 19 18 17

VDD 25
16 OE

PLL_BP 26
15 FSELB

VDDA 27
14 Q4

FSELA 28 OSC_IN 29

MAX3627
13 Q4 12 VDDO_DIFF

X_IN 30
11 Q3

X_OUT 31

GND 32
10 Q3
9 GND
1 2345678

Q0 GND Q1 VDDO_DIFF Q2

THIN QFN 5mm x 5mm
*EXPOSED PAD CONNECTED TO GROUND.

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at

MAX3627
+3.3V, Low-Jitter, Precision Clock Generator with Multiple Outputs

ABSOLUTE MAXIMUM RATINGS

Supply Voltage Range at VDD, VDDA, VDDO_SE, VDDO_DIFF to +4.0V

Voltage Range at Q0, Q0, Q1, Q1, Q2, Q2, Q3, Q3, Q4, Q4, Q5, Q5, Q6, Q6, Q7, PLL_BP, FSELA, FSELB, OE, OSC_IN ...-0.3V to VDD + 0.3V

Voltage Range at X_IN to +1.2V

Voltage Range at X_OUT .................................-0.3V to VDD - 0.6V Continuous Power Dissipation TA = +70°C
32-Pin TQFN-EP derate 34.5mW/°C above +70°C ..2759mW Operating Junction Temperature Range ...........-55°C to +150°C

Storage Temperature Range .............................-65°C to +160°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VDD = +3.0V to +3.6V, TA = 0°C to +70°C, unless otherwise noted. Typical values are at VDD = +3.3V, TA = +25°C, unless otherwise noted. When using X_IN, X_OUT input, no signal is applied at OSC_IN. When PLL is enabled, PLL_BP = high-Z or high. When PLL is bypassed, PLL_BP = low. Note 1

PARAMETER

CONDITIONS

Power-Supply Current Note 2

PLL enabled

PLL bypassed

LVDS OUTPUTS Q0, Q0, Q1, Q1, Q2, Q2, Q3, Q3, Q4, Q4, Q5, Q5, Q6, Q6

Output High Voltage

Output Low Voltage

Differential Output Voltage Amplitude
|VOD| Figure 1

Change in Magnitude of Differential Output for Complementary States

Output Offset Voltage

Change in Magnitude of Output Offset Voltage for Complementary States

Differential Output Impedance

Output Current

Shorted together Short to ground Note 3

Clock Output Rise/Fall Time Output Duty-Cycle Distortion
tr, tf
20% to 80%, RL =

PLL enabled

PLL bypassed Note 4

LVCMOS/LVTTL OUTPUT Q7

Output Frequency

Output High Voltage Output Low Voltage Output Rise/Fall Time

IOH = -12mA

IOL = 12mA
tr, tf
20% to 80% at 125MHz Note 5

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAX3627CTJ+T Datasheet file may be downloaded here without warranties.

Datasheet ID: MAX3627CTJ+T 647309