Specifications

80
AT83SND2CMP3
7524D–MP3–07/07
V
DD
= 2.7 to 3.3 V, T
A
= -40 to +85°C
Phase Lock Loop
Schematic Figure 80. PLL Filter Connection
Parameters Table 60. PLL Filter Characteristics
V
DD
= 2.7 to 3.3 V, T
A
= -40 to +85°C
USB Connection
Schematic Figure 81. USB Connection
Parameters Table 61. USB Termination Characteristics
V
DD
= 2.7 to 3.3 V, T
A
= -40 to +85°C
Symbol Parameter Min Typ Max Unit
C
X1
Internal Capacitance (X1 - VSS) 10 pF
C
X2
Internal Capacitance (X2 - VSS) 10 pF
C
L
Equivalent Load Capacitance (X1 - X2) 5 pF
DL Drive Level 50 µW
F Crystal Frequency 20 MHz
RS Crystal Series Resistance 40 Ω
CS Crystal Shunt Capacitance 6 pF
VSS
FILT
R
C1
C2
VSS
Symbol Parameter Min Typ Max Unit
R Filter Resistor 100 Ω
C1 Filter Capacitance 1 10 nF
C2 Filter Capacitance 2 2.2 nF
D+
D-
VBUS
GND
D+
D-
VSS
To Power Supply
R
USB
R
USB
Symbol Parameter Min Typ Max Unit
R
USB
USB Termination Resistor 27 Ω