9TCS1085
MOBILE ACCESS™—CLOCK SYNTHESIZER, TEMPERATURE SENSOR, & PWM FAN CONTROLLER FOR PORTABLE DEVICES
IDT®
MOBILE ACCESS™—CLOCK SYNTHESIZER, TEMPERATURE SENSOR, & PWM FAN CONTROLLER FOR PORTABLE DEVICES 11
9TCS1085 REV 0.7 012012
Electrical Characteristics–32KHz_A (Low Voltage Output)
Electrical Characteristics–32KHz_B
Recommended 25MHz Crystal Specification
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS Notes
Long Accuracy ppm see Tperiod min-max values kHz 1,2
Output High Voltage V
OH
32K_A Output 0.8 1.2 V 1
Output Low Voltage V
OL
32K_A Output 0.3 V 1
+/-10 ppm
1
0.86 sec/day 1
RTC Frequency Error 32K
RTC_7D
7-day measurement 8 sec 1
Rising Edge Slew Rate t
SLR
Measured from 20% to 80% V/ns 1
Falling Edge Slew Rate t
FLR
Measured from 80% to 20% V/ns 1
Duty Cycle d
t1
VT = V_bat/2 40 60 % 1
*TA = 0 - 70°C; Supply Voltage V_3.3 = VDD_TS = 3.3 V +/-5%, VDD_24M = VDD_27M = VDD_25MB = 3.3V +/- 5%,
VDD_25MA = 1.05V +/- 5%, VDD_32KB = 3.3V +/- 5%, CL = 2pF with Rs = 0
Ω
(unless otherwise specified)
1
Guaranteed by design and characterization, not 100% tested in production.
2
All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 25.000000MHz
32.768 Typical
Initial Frequency Error 32K
INI
0C to 70C
0.03 typ
0.03 typ
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS Notes
Lon
Accuracy ppm see Tperiod min-max values kHz 1,2
Output High Voltage V
OH
32K_B Output 0.9975 3.465 V 1
Output Low Voltage V
OL
32K_B Output 0.3 V 1
+/-10 ppm 1
0.86 sec/day
1
Rising Edge Slew Rate t
SLR
Measured from 20% to 80% 0.3 2 V/ns 1
Falling Edge Slew Rate t
FLR
Measured from 80% to 20% 0.3 2 V/ns 1
Duty Cycle d
t1
VT = V_bat/2 40 60 % 1
*TA = 0 - 70°C; Supply Voltage V_3.3 = VDD_TS = 3.3 V +/-5%, VDD_24M = VDD_27M = VDD_25MB = 3.3V +/- 5%,
VDD_25MA = 1.05V +/- 5%, VDD_32KB = 3.3V +/- 5%, CL = 2pF with Rs = 0
Ω
(unless otherwise specified)
1
Guaranteed by design and characterization, not 100% tested in production.
2
All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 25.000000MHz
32.768 Typical
Initial Frequency Error 32K
INI
0C to 70C
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS NOTES
Frequency Accuracy Faccur @25C +/-10 ppm 1
Frequency Error over
temperature
Ferrt -10C ~ 70C +/-10 ppm 1
Frequency Aging Faging 1 year +/-1 ppm 1
Driver Level DL 100 uW 1
Crystal Load Capacitance CL Parallel Resonance pF 1
*TA = 0 - 70°C; Supply Voltage V_3.3 = VDD_TS = 3.3 V +/-5%, VDD_24M = VDD_27M = VDD_25MB = 3.3V +/- 5%,
VDD_25MA = 1.05V +/- 5%, VDD_32KB = 3.3V +/- 5% (unless otherwise specified)
1
Guaranteed by design and characterization, not 100% tested in production.
8pF Typical
