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TB1262F Datasheet(PDF) 10 Page - Toshiba Semiconductor |
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TB1262F Datasheet(HTML) 10 Page - Toshiba Semiconductor |
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10 / 66 page  TB1261F/TB1262F 2002-6-30 10 / 66 Pin # Description 59 (47) Ys(YCbCr) Ys(YCbCr) Ys(YCbCr) Ys(YCbCr) A fast switch for selecting Y/Cb/Cr2 in (or fast blanking for scart R/G/B in). Forced Y/Cb/Cr (or scart R/G/B in) 0.7V ----------------- Selecting by IICBUS 0V ----------------- 60 nc; 61 (48) Y/CVBS1 IN Y/CVBS1 IN Y/CVBS1 IN Y/CVBS1 IN An alternative input terminal for; - Y + Sync signals of Y/C - Or CVBS_1 Those two are selected by IICBUS This terminal is clamped by charging / discharging the coupling capacitors. It is recommended that input impedance is kept at or below 100Ω. Input level 1Vp-p/140IRE 62 (49) DC RESTOR; DC RESTOR; DC RESTOR; DC RESTOR; A terminal to be connected with a capacitor to detect the average picture level for DC restoration. The ratio of the DC restoration is set by bus.Leave this terminal open if the DC restoration is not required. ; 63 nc; 64 nc; 65 (50) De De De De----Emphasis Emphasis Emphasis Emphasis////Mon Mon Mon Mon----OUT; OUT; OUT; OUT; A terminal to De-Emphasis Audio signal, and pick up detected Audio signal. Connect capacitor (4700pF) to GND. The time constant 50/75us is set by the IICBUS control “SIF Freq”. Remove the capacitor for connecting US/JPN sound multiplex system. 66 QFP only DAC 3; DAC 3; DAC 3; DAC 3; A terminal to be output High/ Low status by an open collector interface. The pull up resistance should be fixed as a sink current is 1mA or less and the voltage is less than the voltage of IF Vcc. 67 (51) IF Vcc(9V); IF Vcc(9V); IF Vcc(9V); IF Vcc(9V); A Vcc terminal for Y/C circuit. Supply 9V.; 68 (52) IF DET OUT; IF DET OUT; IF DET OUT; IF DET OUT; Detected PIF output terminal.(typical output level 2.2Vp-p) Pin # Description 69 (53) LOOP F LOOP F LOOP F LOOP Filter ilter ilter ilter;;;; A terminal to be connected with loop filter for PIF PLL. The terminal voltage controls the PIF VCO frequency.; 70 (54) DC NF; DC NF; DC NF; DC NF; A terminal for connecting a capacitor for DC NF. This filter is very sensitive for the Audio quality; therefore connect capacitor to a stable GND point. In selecting L system, the capacitor works for PIF AGC filter. 71 (55) SIF OUT; SIF OUT; SIF OUT; SIF OUT; An output terminal for a 2’nd SIF signal, which is mixed down by a regenerated carrier. 72 (56) IF GND; IF GND; IF GND; IF GND; The GND terminal for IF circuit.; 73 (1) SIF SIF SIF SIF IN IN IN IN / H corr. / H corr. / H corr. / H corr.;;;; An input terminal for 2’nd SIF signal and H. curve correction. 74 (2) IF VCC IF VCC IF VCC IF VCC (5V) (5V) (5V) (5V);;;; A Vcc terminal for the IF circuit. Supply 5V.; 75 76 (3) (4) 1111’’’’st SIF IN(1) st SIF IN(1) st SIF IN(1) st SIF IN(1);;;; 1111’’’’st SIF IN(2) st SIF IN(2) st SIF IN(2) st SIF IN(2);;;; Input terminals for 1’st SIF signals. If not using Split input, leave these pins open, and turn the IICBUS bit of “Spl/ Int” [s0C/d7] to “1” 77 Nc ( to GND ); Nc ( to GND ); Nc ( to GND ); Nc ( to GND ); Connect this pin to GND to isolate PIF and 1stSIF input. 78 (5) RF AGC; RF AGC; RF AGC; RF AGC; An output terminal for RF AGC. A pull up resistor is required because of its open collector output. A de-coupling capacitor should be also connected to adjust the response. 79 80 (6) (7) IF IN IF IN IF IN IF IN(1) (1) (1) (1);;;; IF IN IF IN IF IN IF IN(2); (2); (2); (2); Input terminals for IF signals. Pin 6 and 7 are the both input poles of a differential amplifier. The normal input level is 90dB(uV); input impedance is 1.5 k ohms. |
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