| 数据搜索系统,热门电子元器件搜索 |
|
SH3003 数据表(PDF) 4 Page - Semtech Corporation |
|
|
|||||||||||||||||||||||||||||
SH3003 数据表(HTML) 4 Page - Semtech Corporation |
|
4 / 30 page ![]() 4 ©2006 Semtech Corp. SH3003 www.semtech.com Not authorized for release outside of Semtech - DRAFT POWER MANAGEMENT Parameter Symbol Min Typ Max Units Crystal operating frequency F OP 32.768 kHz CLK32 duty cycle DC 25 75 % Start-up time T ST 3 secs XIN/XOUT padding capacitance after power-up C PUP 12.5 pF Minimum X IN/XOUT padding capacitance C MIN 10 pF Maximum X IN/XOUT padding capacitance C MAX 40 pF Padding capacitance resolution C RES 2pF X IN switching threshold V TH 0.6 V X IN to CLK32 delay T D 0.5 ppm/°C CLK32 frequency stability (crystal-dependent) F S 1 μs CLK32 cycle-to-cycle jitter J 0.05 % CLK32 rise/fall time (10pF load) T RF 10 ns CLK32 logic output low (0.5mA load) V OL 0.25 0.5 V CLK32 logic output high (0.5mA load) V OH -0.5 -0.25 Ref VDD* Crystal Oscillator *Note: VDD here is VDD during normal operation and VBAK during battery backup. Parameter Symbol Min Typ Max Units External 1MΩ referenced nominal frequency F EXT 32.768 kHZ Internal 1MΩ referenced nominal frequency F INT 32.768 kHZ CLK32 duty cycle* DC 40 60 % Programmed frequency accuracy at 25°C F ST -1 +1 % Absolute accuracy (temp. & supply external 1MΩ)F DE ±2 % Absolute accuracy (temp. & supply internal 1MΩ) F DI ±3 % Frequency temperature stability (ext. 1MΩ)F SE 100 ppm/°C Frequency temperature stability (int. 1MΩ)F SI 200 ppm/°C Power on start-up time T ST 70 μs CLK32 cycle-to-cycle jitter* J 0.1 % 32.768kHz RC Oscillator *Note: After power-up, pin CLK32 is disabled, pin RREF is also disabled, and the oscillator is set to operate without the external reference resistor. Electrical Characteristics (continued) |
|
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |