UPD63210GT NEC, UPD63210GT Datasheet - Page 8

• Manufacturer Part Number: UPD63210GT
• Description: 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO
• Manufacturer: NEC

3. OPERATION
3.1 Operation Clock
8
(1) Selection of system clocks
(2) Generation of operation clock
in Figure 3-1.
pin. The system clock waveform at this time must satisfy the conditions in the electrical specifications (such as
V
IH
System clocks are selected by the CKSEL (No.6) pin.
The clock required for internal operation can be generated by configuring a crystal oscillator circuit as shown
As in Figure 3-2, the clock can also be generated by supplying a system clock from outside to the XTI (No.4)
, V
IL
under DC characteristics; and t
Figure 3-2. Configuration When Providing System Clock Externally
Figure 3-1. Crystal Oscillator Circuit Configuration
Table 3-1. Selection of System Clocks
MCKO
MCKO
System Clock
MCK
384fs
512fs
(No connection required)
To dynamic generator
To dynamic generator
, t
MWH
XTO
XTO
M, t
MWL
External system clock input
20 to 30 pF
970 k
Crystal
under AC characteristics).
CKSEL
H
L
XTI
XTI
PD63210, 63210L