Datasheet

Electrical characteristics STM32F745xx STM32F746xx
130/227 DocID027590 Rev 4
Jitter
(3)
Master I2S clock jitter
Cycle to cycle at
12.288 MHz on
48KHz period,
N=432, R=5
RMS - 90 -
peak
to
peak
- ±280 - ps
Average frequency of
12.288 MHz
N = 432, R = 5
on 1000 samples
-90 -ps
WS I2S clock jitter
Cycle to cycle at 48 KHz
on 1000 samples
-400 - ps
I
DD(PLLI2S)
(4)
PLLI2S power consumption on
V
DD
VCO freq = 100 MHz
VCO freq = 432 MHz
0.15
0.45
-
0.40
0.75
mA
I
DDA(PLLI2S)
(4)
PLLI2S power consumption on
V
DDA
VCO freq = 100 MHz
VCO freq = 432 MHz
0.30
0.55
-
0.40
0.85
mA
1. Take care of using the appropriate division factor M to have the specified PLL input clock values.
2. Guaranteed by design.
3. Value given with main PLL running.
4. Guaranteed by characterization results.
Table 44. PLLI2S characteristics (continued)
Symbol Parameter Conditions Min Typ Max Unit
Table 45. PLLISAI characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
PLLSAI_IN
PLLSAI input clock
(1)
-0.95
(2)
12.10
MHz
f
PLLSAIP_OUT
PLLSAI multiplier output clock
for 48 MHz
- - 48 75
f
PLLSAIQ_OUT
PLLSAI multiplier output clock
for SAI
- - - 216
f
PLLSAIR_OUT
PLLSAI multiplier output clock
for LCD-TFT
- - - 216
f
VCO_OUT
PLLSAI VCO output - 100 - 432
t
LOCK
PLLSAI lock time
VCO freq = 100 MHz 75 - 200
µs
VCO freq = 432 MHz 100 - 300
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