DOWNLOAD Sharp LC-32D12E Service Manual ↓ Size: 6.8 MB | Pages: 110 in PDF or view online for FREE



B/G



D/K



I



L/L’

 TV IF audio filter with two channels

 Channel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75 MHz (L’-

NICAM)

 Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between 32,35 MHz and 33,40 

MHz

1 Input
2 Switching input
3 Chip carrier - ground
4 Output
5 Output



B/G



D/K



I



L/L’

 TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz



Constant group delay

Pin configuration: 

1 Input
2 Input - ground
3 Chip - carrier ground
4 Output
5 Output

The MAX9736A/B Class D amplifiers provide high-performance, thermally efficient amplifier solutions. 
The MAX9736A delivers 2 x 15W into 8Ω loads, or 1 x 30W
into  a  4Ω  load.  The  MAX9736B  delivers  2  x  6W  into  8Ω loads  or  1  x  12W  into  a  4Ω  load.  These 
devices  are  pinfor-pin  compatible,  allowing  a  single  audio  design  to work  across  a  broad  range  of 
platforms, simplifying design efforts, and reducing PCB inventory.
Both devices operate from 8V to 28V and provide a high PSRR, eliminating the need for a regulated 
power supply. The MAX9736 offers up to 88% efficiency at 12V supply.
Pin-selectable  modulation  schemes  select  between  filterless modulation  and  classic  PWM 
modulation. Filterless modulation  allows  the  MAX9736 to  pass  CE EMI  limits  with  1m cables using 
only a low-cost ferrite bead and capacitor on each output. Classic PWM modulation is optimized for 
best audio performance when using a full LC filter.
A pin-selectable stereo/mono mode allows stereo operation into 8Ω loads or mono operation into 4Ω 
loads. In mono mode, the right input op amp becomes available
as a spare device, allowing flexibility in system design.
Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown or 
mute. Input op amps allow the user to create summing amplifiers,
lowpass or highpass filters, and select an optimal gain.
The  MAX9736A/B  are  available  in  32-pin  TQFN  packages and  specified  over  the  -40°C  to  +85°C 
temperature
range.

   Wide 8V to 28V Supply Voltage Range
♦ Spread-Spectrum Modulation Enables Low EMI Solution
♦ Passes CE EMI Limits with Low-Cost Ferrite Bead/Capacitor Filter
♦ Low BOM Cost, Pin-for-Pin Compatible Family
♦ High 67dB PSRR at 1kHz Reduces Supply Cost
♦ 88% Efficiency Eliminates Heatsink
♦ Thermal and Output Current Protection
♦ < 1μA Shutdown Mode
♦ Mute Function
♦ Space-Saving, 7mm x 7mm x 0.8mm, 32-Pin TQFN
Package