Datasheet
Electrical characteristics STM32F401xB STM32F401xC
82/139 DS9716 Rev 11
1. Take care of using the appropriate division factor M to obtain the specified PLL input clock values. The M factor is shared
between PLL and PLLI2S.
2. Guaranteed by design.
3. The use of two PLLs in parallel can degrade the Jitter up to +30%.
4. Guaranteed by characterization.
Table 42. PLLI2S (audio PLL) characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
PLLI2S_IN
PLLI2S input clock
(1)
-0.95
(2)
12.10
MHzf
PLLI2S_OUT
PLLI2S multiplier output clock - - - 216
f
VCO_OUT
PLLI2S VCO output - 192 - 432
t
LOCK
PLLI2S lock time
VCO freq = 192 MHz 75 - 200
µs
VCO freq = 432 MHz 100 - 300
Jitter
(3)
Master I2S clock jitter
Cycle to cycle at
12.288 MHz on
48 KHz 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 -
WS I2S clock jitter
Cycle to cycle at 48 KHz
on 1000 samples
- 400 -
I
DD(PLLI2S)
(4)
PLLI2S power consumption on
V
DD
VCO freq = 192 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 = 192 MHz
VCO freq = 432 MHz
0.30
0.55
-
0.40
0.85
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.
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