Philips Semiconductors
Audio CODEC
Preliminary specification
UDA1342TS
3.0
handVbDooDk,Dhalfpage
(V)
1.5
0
t
3.0
VDDA(DAC)
(V)
1.5
0
3.0
Vref
(V)
1.5
1.25
0.75
0
>1 µs
t
t
MGU002
Fig.8 Power-on reset timing.
8.13 Control modes
The control mode can be set with pin STATIC and
pin L3MODE:
• Static pin mode
• I2C-bus mode
• L3-bus mode.
Table 5 Mode selection
PIN STATIC
LOW
HIGH
HIGH
PIN L3MODE
−
LOW
HIGH
SELECTION
L3-bus mode
I2C-bus mode
static pin mode
Table 6 Pin function in the selected mode
PIN NAME
L3CLOCK
L3MODE
L3DATA
QMUTE
IPSEL
L3-BUS
MODE
L3CLOCK
L3MODE
L3DATA
QMUTE
A0
FUNCTION
I2C-BUS
MODE
STATIC PIN
MODE
SCL clock select
LOW level HIGH level
SDA format select
QMUTE format select
A0
channel select
All features in the L3-bus and I2C-bus mode are explained
in Sections 8.15 and 8.16.
The pin functions in the various modes are summarized in
Table 6.
2000 Mar 29
13