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| AT85C51SND3B1 Datasheet, PDF (243/263 Pages) ATMEL Corporation – Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface | |||
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Parameters
Regulators
Schematic
Parameters
Table 259. DC-DC Filter Characteristics
TA = -40 to +85°C
Symbol Parameter
LDC
CDC1
CDC2
DC-DC Inductance
Low ESR Decoupling Capacitor
Low ESR Decoupling Capacitor
Table 260. DC-DC Power Characteristics
VBAT = 0.9 to 3.6 V; TA = -40 to +85°C
Symbol Parameter
VBAT DC-DC Input Voltage
VDC DC-DC Output Voltage
IDC DC-DC Output Current
HMAX Maximum Efficiency
FSWITCH Switching Frequency
RDCP DCPWR Input Pull-Up Resistor
Min Typ Max Unit
10
µH
20
µF
100
nF
Min Typ Max Unit Test Conditions
0.9
3.6 V IDC = 40 mA
1.6 1.75 1.9 V IDC = 40 mA
40 mA VBAT = 1.0 V
92
% VBAT = 1.5 V
0.5 1.5 3 MHz
30
KΩ
Figure 136. Regulator Connection
HVDD
CHV
VSS
RLVDD
VSS
CLV(*)
Note: Depending on power supply scheme, CLV may replace CDC1 capacitor (see Figure 135).
Table 261. Regulator Filter Characteristics
TA = -40 to +85°C
Symbol Parameter
Min Typ Max Unit
CHV Decoupling Capacitor
CLV Decoupling Capacitor
10
µF
20
µF
Table 262. High Voltage Regulator Power Characteristics
UVCC = 4.4 to 5.5 V; TA = -40 to +85°C
Symbol Parameter
Min Typ Max Unit Test Conditions
VHV High Voltage Regulator Output Voltage
IHV High Voltage Regulator Output Current
3.1 3.3 3.5 V IDC = 50 mA
50 mA
6 AT85C51SND3Bx
7632AâMP3â03/06
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