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HD151TS302RPのメーカーはHitachi Semiconductorです、この部品の機能は「Spread Spectrum Clock」です。 |
部品番号 | HD151TS302RP |
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部品説明 | Spread Spectrum Clock | ||
メーカ | Hitachi Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとHD151TS302RPダウンロード(pdfファイル)リンクがあります。 Total 9 pages
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HD151TS302RP
Spread Spectrum Clock for EMI Solution
ADE-205-655A (Z)
Preliminary
Rev. 1
Sep. 2001
Description
The HD151TS302 is a high-performance Spread Spectrum Clock modulator. It is suitable for low EMI
solution.
Features
• Supports 10 MHz to 60 MHz operation. (Designed for XIN = 24 MHz and 48 MHz)
• 1 copy of clock out with spread spectrum modulation @3.3 V
• 1 copy of reference clock @3.3 V
• Programmable spread spectrum modulation (–0.5%, –1.0%, –3.0% down spread modulation and spread
spectrum disable mode.)
• SOP–8pin
• Pin to pin compatible with HD151TS301RP
Key Specifications
• Supply voltages : VDD = 3.3 V±0.165 V
• Ta = 0 to 70°C operating range
• Clock output duty cycle = 50±5%
• Cycle to cycle jitter = ±250 ps typ.
1 Page SSC Function Table
SEL1 :0
Spread Percentage
0 0 –1.0%
0 1 –3.0%
1 0 SSC OFF
1 1 –0.5%
Note: –3.0% SSC is selected for default by internal pull-up & down resistors.
HD151TS302RP
Clock Frequency Table
XIN(MHz)
SSCCLKOUT(MHz)
48 48*1
24 24*1
Notes: 1. With spread spectrum modulation.
2. Without spread spectrum modulation.
CLKOUT(MHz)
48*2
24*2
Pin Descriptions
Pin name
GND
VDD
CLKOUT
SSCCLKOUT
XIN
XOUT
SEL0
No.
3
2
7
1
4
5
6
SEL1
8
Type
Ground
Power
Output
Output
Input
Output
Input
Input
Description
GND pin
Power supplies pin. Normally 3.3 V.
Normally 3.3 V reference clock output.
Spread spectrum modulated clock output.
Oscillator input.
Oscillator output.
SSC mode select pin. LVCMOS level input.
Pull-up by internal resistor. (100 kΩ).
SSC mode select pin. LVCMOS level input.
Pull–down by internal resistor (100 kΩ).
Rev.1, Sep. 2001, page 3 of 9
3Pages HD151TS302RP
AC Electrical Characteristics / Clock Output & SSC Clock Output
Ta = 25°C, VDD = 3.3 V, CL = 30 pF
Item
Symbol Min Typ Max Unit Test Conditions Notes
Cycle to cycle jitter *1, 2 t
CCS
—
| 250 |
| 300 |
ps SSCCLKOUT, SSC = –0.5%
Fig1, 24 MHz SEL1:0 = 11
— | 250 | | 300 |
SSCCLKOUT,
Fig1, 48 MHz
— | 250 | | 300 |
SSCCLKOUT, SSC = –3.0%
Fig1, 24 MHz SEL1:0 = 01
— | 250 | | 300 |
SSCCLKOUT,
Fig1, 48 MHz
— | 250 | | 300 |
CLKOUT,
Fig1, 24 MHz &
48 MHz
Output frequency *1, 2
23.7 —
24.2 MHz SSCCLKOUT, SSC = –0.5%
XIN = 24 MHz SEL1:0 = 11
47.0 —
48.7
SSCCLKOUT,
XIN = 48 MHz
23.1 —
24.2
SSCCLKOUT, SSC = –3.0%
XIN = 24 MHz SEL1:0 = 01
45.9 —
48.7
SSCCLKOUT,
XIN = 48 MHz
23.8 —
24.2
CLKOUT,
24 MHz
47.3 —
48.7
CLKOUT,
48 MHz
Slew rate *1
tSL
1.0 —
—
V/ns @48 MHz
0.4 V to 2.4 V
CLKOUT
Clock duty cycle *1
45 50 55 %
Output impedance *1
— 30 — Ω
Spread spectrum
modulation frequency *1
— 33 — KHz @48 MHz
SSCCLKOUT
Input clock frequency
10 — 60 MHz
Stabilization time *1,3
——2
ms
Notes: 1. Parameters are guaranteed by design and characterization. Not 100% tested in production.
2. Cycle to cycle jitter and output frequency are included spread spectrum modulation.
3. Stabilization time is the time required for the integrated circuit to obtain phase lock of its input
signal after power up.
Rev.1, Sep. 2001, page 6 of 9
6 Page | |||
ページ | 合計 : 9 ページ | ||
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PDF ダウンロード | [ HD151TS302RP データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
HD151TS302RP | Spread Spectrum Clock | Hitachi Semiconductor |