DataSheet8.cn


PDF ( 数据手册 , 数据表 ) M61528FP

零件编号 M61528FP
描述 SCF TYPE FIXED EQUALIZER FOR CAR AUDIO
制造商 Hitachi
LOGO Hitachi LOGO 


1 Page

No Preview Available !

M61528FP 数据手册, 描述, 功能
M61528FP
SCF TYPE FIXED EQUALIZER FOR CAR AUDIO
Features
Fixed equalizer(3 bands equalizer with SCF)
4 independent fixed equalizer controls.
Reduce the external C,R parts by using SCF (Switched Capacitor Filter) technology.
FADER
4 independent fader controls.
0dB to –50dB/2dBstep, -dB
Built-in Soft-changing circuit for switching-noise.
Application
Car Audio
Recommended Operating Condition
Supply voltage range 7.0V to 9.0V
Rated supply voltage 8.0V
REJ03F0040-0101Z
Rev.1.1
Dec.17.2003
System Configurations
FL IN
FRIN
RLIN
RRIN
Fixed Equalizer
FADER
FADER
FADER
FADER
FL-ch
FR-ch
RL-ch
RR-ch
Power supply
Microcomputer interface
OSC
Rev.1.1, Dec.17.2003, page 1 of 30







M61528FP pdf, 数据表
M61528FP
REAR characteristics : 2.0 / 2.5 / 3.0 / 3.5 / 4.0 (Gv=-8dB, f0=120Hz setting)
(2) Frequency characteristics of Mid (This characteristics is a simulation result.)
Gain control : +4dB to –8dB / 0.5dB (f0=1.2KHz, Q=1.0 setting)
Center frequency : 800Hz / 1.2KHz / 1.5KHz / 2.0KHz / 3.0KHz (Gv=-8dB, Q=1.0 setting)
Rev.1.1, Dec.17.2003, page 8 of 30







M61528FP equivalent, schematic
M61528FP
SOFT-CHANGING 2
This is the circuit which changes gain by 2dB step.
This function can work as follows,
(1) At the time of Soft-changing ON.
(2) Slot15/D6=1
(3) After the last Soft-changing is completed.
For example, the movement when Fader is changed from 0dB to –6dBis shown in the right figure(ex.2).
After this IC receive the data of fader:-6dB,
0dB ” -2dB ” -4dB ” -6dB ”
this circuit changes fader setting from 0dB to –6dB by 2dB step.
Switching time is the time when it was set up with Soft-changing time.
Total changing time is as the follows.
Total changing time=Soft-changing time × the number of the step
In the case of the right figure, total changing time is 99mS. (33mS × 3 steps)
When Soft-changing time is long, step noise is more reduced. Because the step noise is has relations with Soft-
changing time. We recommend SOFT-CHANGING 2.
However, please confirm step noise by listening test, and judge it.
(ex. 2) Fader : 0dB-6dB changing. Soft-changing time : 33ms
CLOCK
D0 to D14 D15
DATA Slot13
Fader
0dB
The latch condition
Fader
-6dB
Output
While Soft-changing works,
PIN15 output “H”
15 pin
t=33mS
t:Soft-changing time (You may change it with serial DATA.)
* 1) While Soft-changing works (PIN15 output “H”),
next data isn't accepted.
* 2) PIN15 outputs “L”exc ept for the time of Sof t-changing.
Rev.1.1, Dec.17.2003, page 16 of 30










页数 30 页
下载[ M61528FP.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
M61528FPSCF TYPE FIXED EQUALIZER FOR CAR AUDIOHitachi
Hitachi

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap