tc94a48fg TOSHIBA Semiconductor CORPORATION, tc94a48fg Datasheet - Page 9

• Manufacturer Part Number: tc94a48fg
• Description: Single-chip Audio Digital Signal Processor Single-chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note 3:
1.2 Timing Output
LRCKO / BCKO Pin Output Settings
MCKO Pin Output Settings
1.3 Example of oscillator circuit
1.4 Example of PLL circuit
A setup of a timing output is performed by the built-in firmware.
The example of a circuit at the time of the crystal oscillator use in an oscillation part is shown in
figure 3.
A PLL circuit can consist of connecting LPF to a PLLC terminal easily. The example of a circuit is
shown in figure 4.
The above-mentioned external constant is a reference value. It may change with application.
Mode
Mode
0
1
2
3
4
0
1
2
Figure 3 Example of oscillator circuit
LRCKO Pin Output
MCKO Pin Output
Figure 4 Example of PLL circuit
Fixed to GND
Fixed to GND
XCKI (=XI)
0.5
×
11.2896MHz
1fs
1fs
2fs
2fs
Crystal oscillator connection
XCKI
0.01uF
220Ω
22pF
46
VCO
64
1MΩ
47
XI
9
48
1
0.1uF
47uF
VDD
Phase
22pF
Comp.
It can be initialized by reset.
Undefined until set by microcontroller or
built-in DSP program
XO
BCKO Pin Output
Fixed to ground
128fs
32fs
64fs
64fs
Remarks
Initial Value
Remarks
TC94A48FG
2005-09-28