LC786800E Datasheet, PDF (21/26 Pages) Sanyo Semicon Device – Compressed Audio signal Processor IC with USB host controller

LC786800E
Internal Voltage Regulator at Ta = -40°C to +85°C, DVSS = AVSS1 = AVSS2 = XVSS = 0V
Parameter
Symbol
Condition
min
typ
max
unit
Output voltage
DVDD15
VDD1 = 3.0V to 3.6V
1.35
1.50
1.65
V
Load current
Iope
VDD1 = 3.3V
200 mA
Note : The specification of “load current” above is sum of the load current of two internal voltage regulator.
Example circuit for Regulator
LC786800
DVDD
DVSS
DVDD15
100μF
C1
* Same circuit need to be mounted both for two regulator pins.
(No.44 and No.90)
* The capacitor C1 must be greater than 50μF and low Secure
50μF or more for low ESR and the capacity value in the range
of the operating temperature so that there is a possibility of the
oscillation when the capacity value changes by the temperature
change etc.
(The recommended value is 100μF.)
Oscillator
Example circuit for Oscillator
LC786800
XVDD
XIN
XOUT
XVSS
Rd1
C1
C1
(1) XIN/XOUT: 12.0000MHz or 16.9344MHz
• For System Main clock and USB control
• Recommended Oscillator
Nihon Dempa Kogyo Co., Ltd.
Type
Oscillation frequency
NX5032GA
12MHz
NX8045GB
12MHz
AT51-CD2
16.9344MHz
Recommended value
Rd1 = 0Ω, C1 = 4pF
Rd1 = 0Ω, C1 = 4pF
Rd2 = 0Ω, C2 = 8pF
<Notes>
• Because the characteristics of oscillator could be changed according to the circuit board, ask evaluation with the
individual original circuit board to the oscillator maker.
• The precision of oscillator used in XIN/XOUT should meet the USB standard.
• If oscillation clock is disturbed by noise or by the other factors, it may lead to operation failure. Hence, make sure to
connect resistor and capacitor for oscillation circuit as close as XIN/XOUT and the wire should be as short as
possible. Also you need to select parts with caution so as to obtain stable external constant value within the
guaranteed operating temperature range because the variation of external constant due to temperature change could
affect the oscillation precision.
• Concerning about internal circuit for XIN/XOUT, refer to the “Analog Pin Internal Equivalent Circuits” section.
No.A2082-21/26