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PDF ( 数据手册 , 数据表 ) UDA1355H

零件编号 UDA1355H
描述 Stereo audio codec
制造商 NXP Semiconductors
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UDA1355H 数据手册, 描述, 功能
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UDA1355H
Stereo audio codec with SPDIF
interface
Preliminary specification
2003 Apr 10







UDA1355H pdf, 数据表
Philips Semiconductors
Stereo audio codec with SPDIF interface
Preliminary specification
UDA1355H
6 PINNING
SYMBOL
BCKI
WSI
DATAI
LOCK
www.DataSheeSt4PUD.cIoFmOUT
VDDE
VSSE
DATAO
WSO
BCKO
CLK_OUT
VDDX
XTALIN
XTALOUT
VSSX
RESET
MODE0
MODE1
MODE2
SEL_STATIC
SLICER_SEL0
SLICER_SEL1
SPDIF0
SPDIF1
SPDIF2
SPDIF3
VDDI
VSSIS
MP0
MP1
MP2
VADCP
VADCN
PIN PAD(1)
1 bpt4mtht5v
2 bpt4mtht5v
3 iptht5v
4 op4mc
5 op4mc
6 vdde
7 vsse
8 ops5c
9 bpt4mtht5v
10 bpt4mtht5v
11 op4mc
12 vddco
13 apio
14 apio
15 vssco
16 ipthdt5v
17 apio
18 bpts5tht5v
19 bpts5tht5v
20 apio
21 bpts5tht5v
22 bpts5tht5v
23 apio
24 apio
25 apio
26 apio
27 vddi
28 vssis
29 apio
30 iptht5v
31 iic400kt5v
32 vddco
33 vssco
DESCRIPTION
bit clock input (master or slave)
word select input (master or slave)
digital data input
PLL lock indicator output
SPDIF output
digital pad supply voltage
digital pad ground
digital data output
word select output (master or slave)
bit clock output (master or slave)
clock output; 256fs or 384fs
crystal oscillator and PLL supply voltage
crystal oscillator input
crystal oscillator output
crystal oscillator and PLL ground
reset input
mode selection input 0 for static mode or microcontroller mode (grounded
for I2C-bus)
mode selection input 1 for static mode or AO address input and output for
microcontroller mode
mode selection input 2 for static mode or U_RDY output for microcontroller
mode
selection input for static mode, I2C-bus mode or L3-bus mode
SPDIF slicer selection input 0 for static mode and USER bit output for
microcontroller mode
SPDIF slicer selection input 1 for static mode and AC3 preamble detect
output for microcontroller mode
SPDIF input 0
SPDIF input 1
SPDIF input 2
SPDIF input 3
digital core supply voltage
digital core ground
multi-purpose pin 0: frequency select for static mode, not used for
microcontroller mode
multi-purpose pin 1: SFOR1 for static mode, SCL for I2C-bus mode and
L3CLOCK for L3-bus mode
multi-purpose pin 2: SFOR0 for static mode, SDA for I2C-bus mode and
L3DATA for L3-bus mode
positive ADC reference voltage
negative ADC reference voltage
2003 Apr 10
8







UDA1355H equivalent, schematic
Philips Semiconductors
Stereo audio codec with SPDIF interface
Preliminary specification
UDA1355H
Table 7 Interpolation filter characteristics
ITEM
Pass-band ripple
Stop band
Dynamic range
CONDITIONS
0 to 0.45fs
>0.55fs
0 to 0.4535fs
VALUE (dB)
±0.035
60
140
www.DataShe7e.t74U.3.com DIGITAL MIXER
The UDA1355H has a digital mixer inside the interpolator.
The digital mixer can be used as a cross over or a selector.
A functional block diagram of the mixer mode is shown in
Fig.9. This mixer can be used in microcontroller mode
only.
The UDA1355H can be set to the mixer mode by setting
bit MIX = 1. In the mixer mode, there are three volume and
mute controls available: for source 1, for source 2 and for
the master (sum) signal. All three volume ranges can be
controlled in 0.25 dB steps.
To prevent clipping inside the mixer, the signals are scaled
with 6 dB before mixing, therefore the sum of the two
signals is always equal to or lower than 0 dB. After the
mixing there is a 6 dB gain in the master volume control.
This means that at the analog output the signal can clip,
but the clipping can be undone by decreasing the master
volume control.
The output of the mixer is available via the I2S-bus output
or via the SPDIF output. The output signal of the mixer is
scaled to a maximum of 0 dB, so the digital output can
never clip.
10
handbook, halfpage
gain
(dB)
8
6
4
2
0
2
4
6
8
10
1
10
MGU832
102 f (Hz)) 103
fc = 70 Hz
fs = 44.1 kHz
Peak gain = 10 dB
Shape factor = 1.4142
Fig.7 Resonant bass boost example 1.
10
handbook, halfpage
gain
(dB)
8
6
4
2
0
2
4
6
8
10
1
10
MGU831
102 f (Hz)) 103
fc = 70 Hz
fs = 44.1 kHz
Peak gain = 10 dB
Shape factor = 1.4142
Fig.8 Resonant bass boost example 2.
2003 Apr 10
16










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