nb3n3010b ON Semiconductor, nb3n3010b Datasheet

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nb3n3010b

Manufacturer Part Number
nb3n3010b
Description
3.3v, 12.288 Mhz Audio Oversampling Clock Generator For Usb Applications
Manufacturer
ON Semiconductor
Datasheet

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NB3N3010B
3.3V, 12.288 MHz Audio
Oversampling Clock
Generator for USB
Applications
Description
generates an output frequency of 12.288 MHz. This is accomplished
by using Frequency−Locked−Loop (FLL) techniques where a 4 kHz
reference input is multiplied by 3072, or an 8 kHz input by 1536. The
frequency multiplier is selected by the S0 pin.
the ENABLEn pin set HIGH. The NB3N3010B operates from a single
+3.3 V supply, and is available in the SOIC−8 pin package, and
optionally in a DFN8 package. The operating temperature range is
from 0°C to +85°C.
cost, flexibility, and high performance. This makes it ideal for
applications such as oversampling A−to−D and D−to−A converters
from a low reference frequency, such as a USB start−of−frame (SOF)
pulse.
Features
© Semiconductor Components Industries, LLC, 2011
May, 2011 − Rev. 0
The NB3N3010B is a precision, low noise clock multiplier that
The two LVCMOS output drivers are disabled to a logic Low with
The NB3N3010B device provides the optimum combination of low
Start−of−Frame
Accepts 8 kHz or 4 kHz Reference Input Derived from USB
Generates 12.288 MHz Frequency−Locked to the Reference
Fully Integrated Frequency−Lock−Loop with Internal Loop Filter
Low Skew Dual LVCMOS Outputs
Very Low Phase Noise Preserves Codec Noise Floor
Internal Voltage Regulator
Supply Voltage Required: +3.3 V $5%
Temperature Range: 0°C to +85°C
These are Pb−Free Devices
REF
3
ENABLEn
VDD
8
1
Frequency
Regulator
Detector
Tolerant
+1.8 V
Linear
Figure 1. NB3N3010B Simplified Diagram
CFILT
5
Loop Filter
Divider
S0
2
GND
4
1
Frequency
Generator
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
CASE 506AA
*For additional marking information, refer to
MN SUFFIX
CASE 751
D SUFFIX
8
Application Note AND8002/D.
(Note: Microdot may be in either location)
SOIC−8
DFN8
Buffers
Output
ORDERING INFORMATION
1
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
M = Date Code
G = Pb−Free Package
http://onsemi.com
6
7
CLK_A
CLK_B
Publication Order Number:
DIAGRAMS*
8
1
MARKING
NB3N3010B/D
3010B
ALYW
1
G
4

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nb3n3010b Summary of contents

Page 1

... S0 pin. The two LVCMOS output drivers are disabled to a logic Low with the ENABLEn pin set HIGH. The NB3N3010B operates from a single +3.3 V supply, and is available in the SOIC−8 pin package, and optionally in a DFN8 package. The operating temperature range is from 0° ...

Page 2

... Output 7 CLKB LVCMOS Output 8 VDD Power Supply NB3N3010B REF 3 6 GND 4 5 Figure 2. Pinout SOIC−8 / DFN8 (Top View) Low active Output Enable; Defaults HIGH when left open; Internal pull−up resistor Frequency Select Input. See input frequency select Table 2 for details. Defaults HIGH when left open. Internal pull− ...

Page 3

Table 2. ATTRIBUTES ESD Protection R − ENABLEn Input Pull−up Resistor PU R − SO Input Pull−up Resistor PU Moisture Sensitivity (Note 1) Flammability Rating Transistor Count Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test 1. For additional information, ...

Page 4

Table 5. AC CHARACTERISTICS V Symbol f Output Clock Frequency: CLKA & CLKB out kHz x 1536 OUT kHz x 3072 OUT f Reference Input Frequency REF t Reference Input Period Jitter (pk−pk) jit(per)−ref ...

Page 5

... Figure 1 shows the simplified block diagram of the NB3N3010B device. The primary function of the NB3N3010B is to accept a selectable 4 kHz or 8 kHz input reference clock, REF, and then multiply it to 12.288 MHz output frequency. Frequency Select − SO Either of two expected input REF frequencies, 4 kHz or 8 kHz, will be multiplied by the FLL to achieve 12.288 MHz at the low− ...

Page 6

CFILT for 1.8 V Regulator CFILT 1.8 V Regulator 220 − 270 nF Figure 4. CFILT Capacitor t REFH REF t MCLKL CLK A, CLK B A low noise 1.8 V LDO/Regulator is integrated to provide a clean supply for ...

Page 7

... ORDERING INFORMATION Device NB3N3010BDG NB3N3010BDR2G NB3N3010BMNG* NB3N3010BMNR4G* †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *To order other package and voltage variants, please contact your ON Semiconductor sales representative. Package SOIC− ...

Page 8

... C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−8 NB CASE 751−07 ISSUE 0.10 (0.004) ...

Page 9

... PAD AS WELL AS THE TERMINALS. MILLIMETERS DIM MIN MAX A 0.80 1.00 A1 0.00 0.05 A3 0.20 REF b 0.20 0.30 D 2.00 BSC D2 1.10 1.30 E 2.00 BSC E2 0.70 0.90 e 0.50 BSC K 0.30 REF L 0.25 0.35 L1 −−− 0.10 RECOMMENDED 8X 1.30 0.50 2.30 1 0.50 PITCH DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NB3N3010B/D ...

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