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參數(shù)資料
| 型號(hào)： | LM4545 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | Codec |
| 英文描述： | AC ’97 Codec with Stereo Headphone Amplifier and National 3D Sound |
| 中文描述： | 交流\u0026#39;97編解碼器與立體聲耳機(jī)放大器和國家3D聲音 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 327K |
| 代理商： | LM4545 |
Electrical Characteristics
(Notes 1, 3) (Continued)
The following specifications apply for AV
= 5V, DV
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25C. The reference
for 0dB is 1Vrms unless otherwise specified.
Symbol
Parameter
Conditions
LM4545
Units
(Limits)
Typical
(Note 7)
Limit
(Note 8)
Analog to Digital Converters
Dynamic Range (Note 2)
Frequency Response
Digital to Analog Converters
Resolution
Dynamic Range (Note 2)
THD
Total Harmonic Distortion
Frequency Response
Group Delay (Note 2)
Out of Band Energy
Stop Band Rejection
D
T
Discrete Tones
Output Volume and Amplifier Section
A
S
Step Size
A
M
Mute Attenuation
Headphone Amplifier Total Harmonic
Distortion plus Noise
Digital I/O
(Note 2)
-60dB Input THD+N, A-Weighted
-1dB Bandwidth
90
20
75
dB (min)
kHz
18
89
0.01
21
Bits
-60dB Input THD+N, A-Weighted
V
IN
= -3dB, f=1kHz, R
L
= 10k
-1dB Bandwidth
85
0.03
dB (min)
% (max)
kHz
mS (max)
dB
dB
dB
1
-40
70
-96
0dB to -46.5dB
1.5
86
dB
dB
THD+N
Loopthru Mode, R
L
= 32
, f=1kHz,
P
OUT
= 50mW
0.02
%
V
IL
Low level input voltage
0.30 x
DVDD
0.40 x
DVDD
0.50 x
DVDD
0.20 x
DVDD
±
10
±
10
V (max)
V
HI
High level input voltage
V (min)
V
OH
High level output voltage
V (min)
V
OL
Low level output voltage
V (max)
I
L
I
L
I
DR
Digital Timing Specifications
(Note 2)
F
BC
BIT_CLK frequency
T
BCP
BIT_CLK period
Input Leakage Current
Tri state Leakage Current
Output drive current
AC Link inputs
High impedance AC Link outputs
AC Link outputs
μA (max)
μA (max)
mA
5
12.288
81.4
MHz
nS
T
CH
BIT_CLK high
Variation of BIT_CLK period from 50%
duty cycle
±
20
% (max)
F
SYNC
T
SP
T
SH
T
SL
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
48
20.8
1.3
19.5
kHz
μS
μS
μS
T
SETUP
Setup Time
SDATA_IN, SDATA_OUT to falling
edge of BIT_CLK
Hold time of SDATA_IN, SDATA_OUT
from falling edge of BIT_CLK
BIT_CLK, SYNC, SDATA_IN or
SDATA_OUT
BIT_CLK, SYNC, SDATA_IN or
SDATA_OUT
For cold reset
15
nS (min)
T
HOLD
Hold Time
5
nS (min)
T
RISE
Rise Time
6
nS (max)
T
FALL
Fall Time
6
nS (max)
T
RST_LOW
RESET# active low pulse width
1.0
μS (min)
www.national.com
3
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| LM4545VH | 功能描述:IC AUDIO CODEC '97 18BIT 48LQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| LM4545VHX | 功能描述:IC AUDIO CODEC '97 18BIT 48LQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| LM4546 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound |
| LM4546_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound |
| LM4546A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound |
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