[AK4250] AK4250 Capless Video Amp with LPF AK4250 LPF 1ch DC 8pin USON 8pin TMSOP 1. • :1 (+6dB) • 2. 3. 4. 5. • LPF • Ta = -40 ∼ 85 °C : 2.7 ∼ 3.6V (typ. 3.0V) : 10 mA Package: 8 pin USON (AK4250VU) 8 pin TMSOP (AK4250VT) ■ PDN VIN Clamp VOUT LPF Clock Generator VDD Charge Pump CP CN VSS VEE Figure 1. AK4250 Block Diagram MS0540-J-04 2010/06 -1- [AK4250] ■ −40 ∼ +85°C −40 ∼ +85°C AK4250VU AK4250VT AKD4250 8 pin USON (0.5mm pitch) 8 pin TMSOP AK4250 ■ AK4250VU CP 1 VDD 2 VIN 3 PDN 4 Top View 8 CN 7 VEE 6 VSS 5 VOUT AK4250VT CP 1 5 CN VDD 2 6 VEE VIN 3 7 VSS PDN 4 8 VOUT Top View MS0540-J-04 2010/06 -2- [AK4250] No. Pin Name CP I/O O 1 2 3 VDD VIN I 4 PDN I 5 6 7 8 VOUT VSS VEE CN O O I Function Positive Charge Pump Capacitor Terminal Pin Power Supply Pin. Composite Video Signal Input Pin Power-Down Mode Pin. Internal Pull Down 100kΩ. “H”: Power up, “L”: Power down. Composite Video Signal Driver Pin Ground Pin Negative Voltage Output Pin for Video Amplifier Negative Charge Pump Capacitor Terminal Pin (VSS=0V; Note 1) Parameter Power Supplies: Input Current, Any Pin Except Supplies Input Voltage (Note 2) Symbol VDD IIN min −0.3 - VIN −0.3 Ambient Temperature (powered applied) Ta −40 Storage Temperature Tstg −65 Note 1. Note 2. VIN pin, PDN pin, PDN pin="L" VOUT pin 4.0V VOUT pin PDN pin="H" PDN pin="L" Wired-OR Wired-OR VOUT pin max 4.0 ±10 (VDD+0.3) or 4.0 85 150 max Units V mA V °C °C (VDD+0.3)V Hi-Z CN pin : (VSS=0V; Note 1) Parameter Power Supplies Note 1. Symbol VDD min 2.7 typ 3.0 max 3.6 Unit V : MS0540-J-04 2010/06 -3- [AK4250] (Ta=25°C; VDD=3.0V; VSS=0V; unless otherwise specified) Parameter Conditions typ max Units -0.386 -0.286 1.5 -0.186 Vpp V 5.0 2.52 140 - 6.0 65 -45 150 - 7.0 15 400 dB Vpp dB dB Ω pF pF Response at 6.75MHz Response at 27MHz -3 - -0.5 -40 -20 dB dB |GD3MHz - 10 100 nsec - 10 1 15 2 mA μA in V (Note 3) Note 4 VIN=100kHz, 0.2Vpp VIN=100kHz , THD= -30dB 100kH ∼ 6MHz, (Note 5) VIN=3.58MHz, 0.2Vpp(Sin Wave) S/N 2 C1(Figure 2 C2(Figure 2 ) ) LPF Input= 0.2Vpp, Sin Wave (0dB at 100kHz) GD6MHz| PDN pin = 0V Note 3. Charge Pump VIN ( ) Note 4. Note 5. Figure 2 100% A A 75 ohm Video Signal Output R2 75 ohm R1 C1 C2 Figure 2. Load Capacitance C1 and C2 DC (Ta=25°C; VDD=2.7 ∼ 3.6V) Parameter High-Level Input Voltage Low-Level Input Voltage (PDN pin) (PDN pin) Symbol VIH VIL MS0540-J-04 min 1.5 - typ - max 0.6 Units V V 2010/06 -4- [AK4250] ■ AK4250 150Ω 1 (Figure 3) (Figure 4) LPF 0V DC AK4250 VDD Charge Pump CP CN Negative Power VSS C2 (+) 1uF Note 6. C1 C2 1uF (+) C1 ESR( CP VEE ) VSS Figure 3. AK4250 75Ω VOUT 75Ω 0V Figure 4. Video ■ PDN pin “L” “L” VOUT pin AK4250 “Hi-Z” typ. 1μA PDN pin AK4250 MS0540-J-04 2010/06 -5- [AK4250] Figure 5 (AKD4250) (+) Power Supply 2.7∼3.6V 10µ + 0.1µ 1µ 1 CP CN 8 0.1u 1µ VEE 7 2 VDD (+) Top View VSS 6 3 VIN 75 VOUT 5 4 PDN DSP or μP Figure 5. Typical Connection Diagram : - CN pin MS0540-J-04 2010/06 -6- [AK4250] (AK4250VU) 8pin USON (Unit: mm) 2.2 ± 0.05 0.25 ± 0.05 1.2 ± 0.05 2.2 ± 0.05 1.9 ± 0.05 0.05 0.2 ± 0.05 0.6MAX 0.5 M 0.05 ■ : : : MS0540-J-04 2010/06 -7- [AK4250] (AK4250VT) 8pin TMSOP (Unit: mm) 0.127 +0.1 -0.05 0.95 max. 0.55±0.2 2.8 4.0±0.2 2.9 +0.12 -0.1 0.65 +0.1 0.1 -0.05 0~10° 0.1 0.2±0.05 0.1 M ■ : : Cu : Sn-Bi MS0540-J-04 2010/06 -8- [AK4250] (AK4250VU) 250 XXX XXX: Date code (3 digit) (AK4250VT) 8 7 6 5 #1Pin Indicator Chip No. (AK4xxx=xxx) Year 1 Digit Month 1 Digit Manage Code (Internal use) 250 (2) YMA (1) (3) (4) (5) 1 2 3 4 MS0540-J-04 2010/06 -9- [AK4250] Date (YY/MM/DD) 06/11/07 07/11/05 08/09/05 10/04/08 Revision 00 01 02 03 10/06/07 04 Reason Page 4 8 7 Contents : max 20μA 2μA ■ : AK4250VT z z z z z z MS0540-J-04 2010/06 - 10 -