Two-Channel Clock Fanout
The NB3RL02 is a low−skew, low jitter 1:2 clock fan−out buffer,
ideal for use in portable end−equipment, such as mobile phones. With
integrated LDO and output control circuitry.
The MCLK_IN pin has an AC coupling capacitor and will directly
accept a square or sine wave clock input, such as a temperature
compensated crystal oscillator (TCXO). The minimum acceptable
input amplitude of the sine wave is 300 mV peak−to−peak.
The two clock outputs are enabled by control inputs CLK_REQ1
The NB3RL02 has an integrated Low−Drop−Out (LDO) voltage
regulator which accepts input voltages from 2.3 V to 5.5 V and outputs
1.8 V at Iout = 50 mA. This 1.8 V supply is externally available to
provide regulated power to peripheral devices, such as a TCXO.
The adaptive clock output buffers offer controlled slew−rate over a
wide capacitive loading range which minimizes EMI emissions,
maintains signal integrity, and minimizes ringing caused by signal
reflections on the clock distribution lines.
The NB3RL02 is offered in a 0.4 mm pitch wafer−level−chip−scale
(WLCS) package (0.8 mm x 1.6 mm) and is optimized for very low
standby current consumption.
• Low Additive Noise:
♦ −149 dBc/Hz at 10 kHz Offset Phase Noise
♦ 0.37 ps (rms) Output Jitter
• Limited Output Slew Rate for EMI Reduction
(1 ns to 5 ns/Rise/Fall Time for 10−50 pF Loads)
• Regulated 1.8 V Output Supply Available for External Clock Source,
• Ultra−Small Package:
♦ 8−ball: 0.4 mm Pitch WLCS (0.8 mm x 1.6 mm)
• ESD Performance Exceeds JESD 22
♦ 2000 V Human−Body Model (A114−A)
♦ 200 V Machine Model (A115−A)
♦ 1000 V Charged−Device Model (JESD22−C101−A Level III)
• These are Pb−Free Devices
• Cellular Phones
• Global Positioning Systems (GPS)
RL = Specific Device Code
YY = Year
WW = Work Week
G = Pb−Free Package
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
July, 2011 − Rev. 1
Publication Order Number:
Datasheet pdf - http://www.DataSheet4U.net/