OMAP3530_17 Datasheet, PDF (146/265 Pages) Texas Instruments – Applications Processors

OMAP3530, OMAP3525
SPRS507H – FEBRUARY 2008 – REVISED OCTOBER 2013
www.ti.com
Table 4-18. DPLL3 Clock Frequency Ranges, VDD2 OPP2 (continued)
Clock Signal
CM: L4_ICLK
SGX
SDRC
GPMC
Description
Output of clock manager (CM), generated using
CM L3_ICLK and divider.
SGX input clock, taken from CM CORE_CLK.
SDRC input clock, taken from CM L3_ICLK.
GPMC input clock, taken from CM L3_ICLK.
Config 1
(83 MHz)
Min
Max
-
41.5
-
55.53
-
83
-
41.5
Config 2
(100 MHz)
Min
Max
-
50
-
66.67
-
100
-
50
Unit
MHz
MHz
MHz
MHz
Table 4-19. DPLL3 Clock Frequency Ranges, VDD2 OPP1⁽¹⁾
Config 1
(40 MHz)
Clock Signal
Description
Min
Max
CM: CORE_CLK
Output of clock manager (CM), generated directly
from DPLL3.
-
83
CM: L3_ICLK
Output of clock manager (CM), generated using
DPLL3.
-
41.5
CM: L4_ICLK
Output of clock manager (CM), generated using CM
L3_ICLK and divider.
-
20.75
SGX
SGX input clock, taken from CM CORE_CLK.
-
N/A
SDRC
SDRC input clock, taken from CM L3_ICLK.
-
41.5
GPMC
GPMC input clock, taken from CM L3_ICLK.
-
41.5
(1) Cannot boot in OPP1. If OPP1 is desired, boot in higher OPP then switch to OPP1.
Config 2
(50 MHz)
Min
Max
-
100
-
50
-
25
-
N/A
-
50
-
25
Unit
MHz
MHz
MHz
MHz
MHz
MHz
Table 4-20 summarizes the DLL characteristics.
Table 4-20. DLL Characteristics
PARAMETER
MIN
NOM
MAX
UNIT
COMMENTS
Supply voltage vdds_dpll_dll
1.71
1.8
1.89
V
Junction operating temperature
–40
25
105
°C
Input clock frequency
66
120
133
MHz APPLICATION MODE 0
Input load⁽¹⁾
Lock time⁽²⁾
83
120
166
APPLICATION MODE 1
15
fF
500
Clocks
Relock time
500
ns
IDLE to MODEMAXDELAY
(Mode transitions through idle mode)
150
372
Clocks IDLE to APPLICATION MODE 1 or 0
1
2
μs
IDLE to APPLICATION MODE @133 MHz
1
1.5
μs
IDLE to APPLICATION MODE @166 MHz
(1) This parameter is design goal and is not tested on silicon.
(2) Lock signal would go high from power down within 500 clocks. Lock signal switches to low state when the input clock is switched off
after 3 μs.
146 CLOCK SPECIFICATIONS
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