uda1345ts-n2 NXP Semiconductors, uda1345ts-n2 Datasheet - Page 23

• Manufacturer Part Number: uda1345ts-n2
• Description: Economy Audio Codec
• Manufacturer: NXP Semiconductors

Philips Semiconductors
13 APPLICATION INFORMATION
The application information as given in Fig.9 is an optimum application environment. Simplification is possible at the cost
of some performance degradation. The following notes apply:
2002 May 28
The capacitors at the output of the DAC can be reduced. It should be noted that the cut-off frequency of the DC filter
also changes.
The capacitors at the input of the ADC can also be reduced. It should be noted that the cut-off frequency of the
capacitor with the 12 kW input resistance of the ADC will also change.
Economy audio CODEC
ground
system
overload
clock
input
input
right
flag
left
3 V
X4
X5
8LM32A07
8LM32A07
L1
L2
(16 V)
(16 V)
47 F
47 F
C1
C6
47
100 F
R30
(16 V)
C12
100 F
(16 V)
C11
V DDA
V DDD
SYSCLK
DATAO
DATAI
VINR
VINL
BCK
MP1
MP2
MP3
MP4
WS
12
18
16
17
19
13
14
15
9
3
5
1
V SSA(ADC)
100 F
100 nF
(16 V)
(63 V)
C21
C2
Fig.9 Application diagram.
V SSO
27
100 F
100 nF
2
(16 V)
(63 V)
C26
V DDA(ADC) V ADCN
V DDA
C7
R21
1
V DDO
25
UDA1345TS
V DDO
10
R25
1
23
R24
6
100 nF
(63 V)
C25
22
V SSA(DAC)
7
V ADCP
100 nF
100 F
(63 V)
(16 V)
C27
C10
11
V DDA
V SSD
23
V DDA(DAC)
R29
1
V DDD
10
V DDD
R28
10
26
24
28
4
V ref(A)
VOUTL
VOUTR
V ref(D)
(16 V)
(16 V)
47 F
47 F
C5
C8
C23
100 nF
(63 V)
C22
100 nF
(63 V)
R22
10 k
R27
10 k
UDA1345TS
Product specification
100
100
C3
47 F
(16 V)
R26
R23
C4
47 F
(16 V)
X2
X3
MGS877
output
output
right
left