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Ordering number : EN5546A
CMOS LSI
LC89978M
CCD Delay Line for Multi-System
Overview
The LC89978M is a CCD delay line for multi television system that incorporates a comb filter to remove noise from the chrominance signal and a 1-H delay line for the luminance signal.
Package Dimensions
unit: mm
3111-MFP14S
[LC89978M]
Features
* 5-V single-voltage power supply * Built-in 4 x PLL frequency multiplier circuit allows 4fsc operation from an fsc (3.58 MHz) input. * Can be switched between the NTSC/M, PAL/GBI, and PAL/M formats by setting control pin values. * Includes a built-in crosstalk exclusion comb filter for the chrominance signal that provides high-precision comb characteristics in an adjustment-free circuit. * Peripheral circuits provided on chip for operation with a minimum of external components. * Positive-phase signal input, positive-phase signal output (luminance signal)
SANYO: MFP14S
Functions
* CCD shift registers (for chrominance and luminance signals) * Timing generator and clock driver for CCD * Delay time selective circuit * CCD signal adder * Auto-bias circuit * Sync tip clamp circuit (luminance signal) * Center bias circuit (chrominance signal) * Sample-and-hold circuit * 4 x PLL frequency multiplier circuit * 4fsc clock output circuit * High voltage generator for CCD Reset Drain (RD).
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VDD Pd max Topr Tstg Conditions Ratings -0.3 to +6.0 250 -10 to +60 -55 to +125 Unit V mW C C
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73097HA (OT)/N3096HA (OT) No. 5546-1/7
LC89978M Allowable Operating Ranges at Ta = 25C
Parameter Supply voltage Clock input amplitude Clock frequency Chrominance signal input amplitude Luminance signal input amplitude Symbol VDD VCLK FCLK VIN-C VIN-Y Sine wave Conditions Ratings min 4.75 300 typ 5.00 500 3.579545 350 400 500 572 max 5.25 1000 Unit V mVp-p MHz mVp-p mVp-p
Pin Assignment
Block Diagram
No. 5546-2/7
LC89978M Control Pin Functions
CONT1 Low Low High High CONT2 Low High Low High Mode (representative) PAL/GBI PAL/M -- NTSC/M Chrominance signal delay (number of CCD stages) 2H (1833.5) + 0H (1.5) 2H (1821.5) + 0H (1.5) -- 1H (911.5) + 0H (1.5) Luminance signal delay (number of CCD stages) 1H (913) 1H (907) -- 1H (907)
Switching Voltage Levels
Parameter Switching voltage level: low Switching voltage level: high Symbol VL VH Conditions Ratings min -0.3 2.0 typ 0.0 5.0 max +0.5 6.0 Unit V V
Note: *Since the control pins have built-in pull-down resistors (about 70 k), leaving these pins opens effectively sets them to the low level.
Function of the 4FSC Pin This pin provides a 4fsc clock signal generated by the 4 x PLL frequency multiplier circuit.
Electrical Characteristics at VDD = 5.0 V, Ta = 25C, FCLK = 3.579545 MHz, VCLK = 500 mVp-p
Parameter Symbol IDD-1 Supply current IDD-2 IDD-3 [Chrominance signal characteristics] (with no input to Y-IN) VINC-1 VINC-2 DC output voltage VINC-3 VOUTC-1 VOUTC-2 VOUTC-3 GVC-1 Voltage gain GVC-2 GVC-3 CD-1 Comb depth CD-2 CD-3 LNC-1 Linearity LNC-2 LNC-3 LCK4C-1 Clock leakage (4fsc) LCK4C-2 LCK4C-3 LCK1C-1 Clock leakage (fsc) LCK1C-2 LCK1C-3 a a b a a b a a b a a b a a b a a b a a b a b b a b b a b b a b b a b b a b b a b b a a a a a a a a a a a a a a a a a a a a a b b b b b b b b b b b b b b b b b b b b b *2 *2 *2 *2 *2 *2 *3 *3 *3 *4 *4 *4 *5 *5 *5 *6 *6 *6 *6 *6 *6 0.5 1.5 mVrms 10 50 mVrms -0.3 0.0 +0.3 dB -40 -35 dB -2 0 +2 dB 1.4 1.9 2.4 V 1.9 2.4 2.9 V Switch states SW1 a a b SW2 a b b SW3 a a a SW4 b b b Test conditions *1 *1 *1 31 36 41 mA min Ratings typ max Unit
Continued on next page. No. 5546-3/7
LC89978M
Continued from preceding page.
Parameter Symbol NC-1 Noise NC-2 NC-3 ZOC-1 Output impedance ZOC-2 ZOC-3 TDC-1 0-H delay time TDC-2 TDC-3 VINY-1 VINY-2 DC output voltage VINY-3 VOUTY-1 VOUTY-2 VOUTY-3 GVY-1 Voltage gain GVY-2 GVY-3 GFY-1 Frequency response GFY-2 GFY-3 DGY-1 Differential gain DGY-2 DGY-3 DPY-1 Differential phase DPY-2 DPY-3 LSY-1 Linearity LSY-2 LSY-3 LCK4Y-1 Clock leakage (4fsc) LCK4Y-2 LCK4Y-3 LCK1Y-1 Clock leakage (fsc) LCK1Y-2 LCK1Y-3 NY-1 Noise NY-2 NY-3 ZOY-1 Output impedance ZOY-2 ZOY-3 TDY-1 Delay time TDY-2 TDY-3 Switch states SW1 a a b a a b a a b SW2 a b b a b b a b b SW3 a a a a a a a a a SW4 b b b a, b a, b a, b b b b Test conditions *7 *7 *7 *8 *8 *8 *9 *9 *9 160 ns 200 350 500 0.5 2.0 mVrms min Ratings typ max Unit
[Luminance signal characteristics] (With no signals input to C-IN1 and C-IN2) a a b a a b a a b a a b a a b a a b a a b a a b a a b a a b a a b a a b a b b a b b a b b a b b a b b a b b a b b a b b a b b a b b a b b a b b a a a a a a a a a b b b a a a a a a a a a a a a a a a a a a a a a a a a b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b c, b c, b c, b b b b *10 *10 *10 *10 *10 *10 *11 *11 *11 *12 *12 *12 *13 *13 *13 *13 *13 *13 *14 *14 *14 *15 *15 *15 *15 *15 *15 *16 *16 *16 *17 *17 *17 *18 *18 *18 63.81 63.39 63.39 s s s 250 400 550 0.5 2.0 mVrms 0.5 1.5 mVrms 10 50 mVrms 37 40 43 % 0 5 8 deg 0 5 8 % -2 0 +2 dB -2 0 +2 dB 0.7 1.2 1.7 V 1.3 1.8 2.3 V
No. 5546-4/7
LC89978M Test Conditions 1. The supply current with no input signal 2. The pin output voltage (the center bias voltage) with no input signal 3. Measure the C-OUT output when a 350-mVp-p sine wave is input to C-IN1 and C-IN2. C-OUT output [mVp-p] GVC = 20log -------------------- [dB] 350 [mVp-p] Test frequencies: GVC-1: 4.431395 MHz (PAL/GBI) GVC-2: 3.571628 MHz (PAL/M) GVC-3: 3.571628 MHz (NTSC/M) 4. Measure the comb depth from the C-OUT output when a 350-mVp-p sine wave with frequency fa is input to C-IN1 and C-IN2, and when a sine wave of frequency fb is input. The C-OUT output for an fb input [mVp-p] CD = 20log ------------------------------------ [dB] The C-OUT output for an fa input [mVp-p] Test Frequencies fa fb CD-1: 4.431395 MHz (PAL/GBI) 4.435303 (PAL/GBI) GD-2: 3.571628 MHz (PAL/M) 3.575561 (PAL/M) GD-3: 3.571628 MHz (NTSC/M) 3.563761 (NTSC/M)
5. Measure the C-OUT output when a 200-mVp-p sine wave is input to C-IN1 and C-IN2, and when a 500-mVp-p sine wave is input, and calculate the gain difference as follows: LNC = 20log The output for a 500-mVp-p input [mVp-p] ------------------------------------ 500 [mVp-p] Test Frequencies LNC-1 4.431395MHz (PAL/GBI) LNC-2 3.571628MHz (PAL/M) LNC-3 3.571628MHz (NTSC/M)
(
The output for a 200-mVp-p input [mVp-p] ------------------------------------ [dB] 200 [mVp-p]
)
6. Measure the 4fsc (14.3 MHz) and fsc (3.58 MHz) components in the C-OUT output with no input signal. 7. Measure the noise in the C-OUT output with no input signal. Measure the noise with a noise meter with a 200-kHz high-pass filter and a 5-MHz low-pass filter. 8. Input a 350-mVp-p sine wave to C-IN1 and C-IN2. Let V1 be the C-OUT output when SW3 is set to the `a' position, and let V2 be the C-OUT output when SW3 is set to the 'b' position. V2 [mVp-p] - V1 [mVp-p] ZOC = ---------------------- x 500 [dB] V1 [mVp-p] Test Frequencies ZOC-1: 4.431395 MHz (PAL/GBI) ZOC-2: 3.571628 MHz (PAL/M) ZOC-3: 3.571628 MHz (NTSC/M) 9. The delay time in the C-OUT output with respect to the C-IN1 input. This is the CCD 1.5-bit delay. 10. The pin output voltage (clamp voltage) with no input signal.
No. 5546-5/7
LC89978M 11. Measure the Y-OUT output with a 200-kHz 400-mVp-p sine wave input to Y-IN. Y-OUT output [mVp-p] GVY = 20log -------------------- [dB] 400 [mVp-p] 12. Measure the Y-OUT output when a 200-kHz 200-mVp-p sine wave is input to Y-IN, and when a 3.5-MHz 200-mVp-p sine wave is input. The Y-OUT output for a 3.5-MHz input [mVp-p] GFY = 20log ------------------------------------------ [dB] The Y-OUT output for a 200-kHz input [mVp-p] Here, adjust Vbias so that the clamp level is +250 mV. 13. Apply a 5-step staircase wave (as in the figure below) to Y-IN, and measure the differential gain and differential phase in the Y-OUT output using a vector scope.
14. Apply a 5-step staircase wave (as in the figure below) to Y-IN, and measure the luminance level (Y) and the sync level (S) in the Y-OUT output. S [mV] LS = -------- x 100 [%] Y [mV]
15. Measure the 4fsc (14.3 MHz) and fsc (3.58 MHz) components in the Y-OUT output with no input signal. 16. Measure the noise in the Y-OUT output with no input signal. Measure the noise with a noise meter with a 200-kHz low-pass filter, a 4.2-MHz low-pass filter, and a 3.58-MHz trap filter. 17. Input a 200-kHz, 400-mVp-p sine wave to Y-IN1. Let V1 be the V-OUT output when SW3 is set to the `c' position, and let V2 be the Y-OUT output when SW3 is set to the `b' position. V2 [mVp-p] - V1 [mVp-p] ZOY = ------------------------ x 500 [] V1 [mVp-p] 18. Measure the delay time in the Y-OUT output with respect to the input to Y-IN.
No. 5546-6/7
LC89978M Test Circuit
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of July, 1997. Specifications and information herein are subject to change without notice. No. 5546-7/7

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