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參數(shù)資料
| 型號(hào)： | C9851BY |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | LED GREEN HIGHBRIGHTNESS |
| 中文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 122K |
| 代理商： | C9851BY |
Clock Generator for Pentium
III Server and Workstation Applications
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07068 Rev. **
05/04/2001
Page 9 of 14
PRELIMINARY
C9851
Buffer Characteristics
Current Mode CPU Clock Buffer Characteristics
The current mode output buffer detail and current reference circuit details are contained elsewhere in this datasheet.
The following parameters are used to specify output buffer characteristics:
1. Output impedance of the current mode buffer circuit - Ro (see Figure 3).
2. Minimum and maximum required voltage operation range of the circuit – Vop (see Figure 3).
3. Series resistance in the buffer circuit – Ros (see Figure 3).
4. Current accuracy at given configuration into nominal test load for given configuration.
Figure 3
Host Clock (HCSL) Buffer Characteristics
Characteristic
Ro
Ros
Vout
Iout is selectable depending on implementation. The parameters above apply to all configurations. Vout is the voltage
at the pin of the device.
Minimum
3000 Ohms (recommended)
Unspecified
N/A
Maximum
N/A
Unspecified
1.2 Volt
The various output current configurations are shown in the host swing select functions table. For all configurations, the
deviation from the expected output current is +/- 7% as shown in the table current accuracy (page 12).
1.2V
0V
Iout
Iout
Ros
Ro
VDD3 (3.3V +/- 5%)
Vout = 1.2V max
Vout
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