JAJSG88 データシート

JAJSG88D May 2013 – October 2020 MSP430F5252 , MSP430F5253 , MSP430F5254 , MSP430F5255 , MSP430F5256 , MSP430F5257 , MSP430F5258 , MSP430F5259

PRODUCTION DATA

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）

RGC|64
- MPQF125F

サーマルパッド・メカニカル・データ

RGC|64
- QFND102O

発注情報

8.25 DCO Frequency

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
f_DCO(0,0)	DCO frequency (0, 0)⁽¹⁾	DCORSELx = 0, DCOx = 0, MODx = 0	0.07		0.20	MHz
f_DCO(0,31)	DCO frequency (0, 31)⁽¹⁾	DCORSELx = 0, DCOx = 31, MODx = 0	0.70		1.70	MHz
f_DCO(1,0)	DCO frequency (1, 0)⁽¹⁾	DCORSELx = 1, DCOx = 0, MODx = 0	0.15		0.36	MHz
f_DCO(1,31)	DCO frequency (1, 31)⁽¹⁾	DCORSELx = 1, DCOx = 31, MODx = 0	1.47		3.45	MHz
f_DCO(2,0)	DCO frequency (2, 0)⁽¹⁾	DCORSELx = 2, DCOx = 0, MODx = 0	0.32		0.75	MHz
f_DCO(2,31)	DCO frequency (2, 31)⁽¹⁾	DCORSELx = 2, DCOx = 31, MODx = 0	3.17		7.38	MHz
f_DCO(3,0)	DCO frequency (3, 0)⁽¹⁾	DCORSELx = 3, DCOx = 0, MODx = 0	0.64		1.51	MHz
f_DCO(3,31)	DCO frequency (3, 31)⁽¹⁾	DCORSELx = 3, DCOx = 31, MODx = 0	6.07		14.0	MHz
f_DCO(4,0)	DCO frequency (4, 0)⁽¹⁾	DCORSELx = 4, DCOx = 0, MODx = 0	1.3		3.2	MHz
f_DCO(4,31)	DCO frequency (4, 31)⁽¹⁾	DCORSELx = 4, DCOx = 31, MODx = 0	12.3		28.2	MHz
f_DCO(5,0)	DCO frequency (5, 0)⁽¹⁾	DCORSELx = 5, DCOx = 0, MODx = 0	2.5		6.0	MHz
f_DCO(5,31)	DCO frequency (5, 31)⁽¹⁾	DCORSELx = 5, DCOx = 31, MODx = 0	23.7		54.1	MHz
f_DCO(6,0)	DCO frequency (6, 0)⁽¹⁾	DCORSELx = 6, DCOx = 0, MODx = 0	4.6		10.7	MHz
f_DCO(6,31)	DCO frequency (6, 31)⁽¹⁾	DCORSELx = 6, DCOx = 31, MODx = 0	39.0		88.0	MHz
f_DCO(7,0)	DCO frequency (7, 0)⁽¹⁾	DCORSELx = 7, DCOx = 0, MODx = 0	8.5		19.6	MHz
f_DCO(7,31)	DCO frequency (7, 31)⁽¹⁾	DCORSELx = 7, DCOx = 31, MODx = 0	60		135	MHz
S_DCORSEL	Frequency step between range DCORSEL and DCORSEL + 1	S_RSEL = f_{DCO(DCORSEL+1,DCO)}/f_{DCO(DCORSEL,DCO)}	1.2		2.3	ratio
S_DCO	Frequency step between tap DCO and DCO + 1	S_DCO = f_{DCO(DCORSEL,DCO+1)}/f_{DCO(DCORSEL,DCO)}	1.02		1.12	ratio
	Duty cycle	Measured at SMCLK	40%	50%	60%
df_DCO/dT	DCO frequency temperature drift⁽²⁾	f_DCO = 1 MHz		0.1		%/°C
df_DCO/dV_CC	DCO frequency voltage drift⁽³⁾	f_DCO = 1 MHz		1.9		%/V

(1) When selecting the proper DCO frequency range (DCORSELx), the target DCO frequency, f_DCO, should be set to reside within the range of f_{DCO(n, 0),MAX} ≤ f_DCO ≤ f_{DCO(n, 31),MIN}, where f_{DCO(n, 0),MAX} represents the maximum frequency specified for the DCO frequency, range n, tap 0 (DCOx = 0) and f_{DCO(n,31),MIN} represents the minimum frequency specified for the DCO frequency, range n, tap 31 (DCOx = 31). This ensures that the target DCO frequency resides within the range selected. It should also be noted that if the actual f_DCO frequency for the selected range causes the FLL or the application to select tap 0 or 31, the DCO fault flag is set to report that the selected range is at its minimum or maximum tap setting.

(2) Calculated using the box method: (MAX(–40°C to 85°C) – MIN(–40°C to 85°C)) / MIN(–40°C to 85°C) / (85°C – (–40°C))

(3) Calculated using the box method: (MAX(1.8 V to 3.6 V) – MIN(1.8 V to 3.6 V)) / MIN(1.8 V to 3.6 V) / (3.6 V – 1.8 V)

Figure 8-12 Typical DCO Frequency