FAN7000D FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

  • Low Quiescent Current
  • High Power Supply Ripple Rejection
  • Low V oltage Operation
  • A few of External Part Required
  • Built in Power Save Switch & Mute Switch Typical Applications
  • Portable Compact Disk Player (DISCMAN)
  • Portable Mini Disk Player (MD)
  • D i s c - M a n
  • MP3 Player
  • C D - R O M
  • Other Potable Compact Disk Media Fan Motor Drive

Description

The FAN7000D is a monolithic integrated circuit and suitable dual amplifier for low power. 10-SSOP-225

Ordering Information

Device Package Operating Temp. FAN7000D 10-SSOP-225 -20 °C ~ +75°C FAN7000DTF 10-SSOP-225 -20 °C ~ +75°C FAN7000D Low Power Amplifier

Pin Number Pin Name Pin Function Description

1 PS Power Save Switch

3 GND Signal Ground

5 REF Reference Voltage

8 GND Power Ground

10 MUTE Mute On Switch

10POWER SAVE SWITCH CTL MUTE CTL REF REF REF REF PS INA GND INB REF VCC OUTB GND OUTA MUTE

Absolute Maximum Ratings (Ta = 25°°°°C) Power Dissipation Curve Recommended Operating Conditions (Ta = 25°°°°C) Parameter Symbol Value Unit Remark Maximum Supply Voltage V CC 4.5 V Maximum Supply Voltage Power Dissipation P D 300 mW Power Dissipation Operating Temperature T OPR -20 ~ +75 °C Operating Temperature Storage Temperature T STG -55 ~ +125 °C Storage Temperature Thermal Resistance T ja 150 °C/W - Parameter Symbol Min. Typ. Max. Unit Operating Supply Voltage V CC 1.8 3.0 4.0 V Recommended Load R L 16 - 32 Ω Power dissipation (mW) 300 150 25 75 125 Ambient temperature, Ta (°C)

Electrical Characteristics (RL = 16Ω , Rg = 600Ω , Ta = 25°C) Parameter Symbol Conditions Min. Typ. Max. Unit Quiescent Current 1 I CC1 VCC = 2.4V - 5.5 10.0 mA Quiescent Current 2 I CC2 VCC = 4.5V, Mute = GND - 1.0 2.0 mA Quiescent Current 3 I CC3 VCC = 4.5V, PS = GND - - 1.0 µA Close Loop Voltage Gain 1 G VC1 VCC = 2.4V, f = 1kHz, VO = -10dBm 30 32 34 dB Close Loop Voltage Gain 2 G VC1 VCC = 1.8V, f = 1kHz, VO = -20dBm 29 32 34 dB Channel Balance 1 ∆GV1 VCC = 2.4V, f = 1kHz, VO = -10dBm -- 1.0 dB Channel Balance 2 ∆GV2 VCC = 1.8V, f = 1kHz, VO = -20dBm -- 1.0 dB Total Harmonic Distortion THD VCC = 2.0V, f = 1kHz, PO = 1mW - 0.5 1.5 % Ripple Rejection Ratio RR VCC = 1.8V, f = 100Hz, Rg = 1kΩ , VR = -20dBm, BPF = 100Hz 43 60 dB Crosstalk CT VCC = 2.4V, f = 100Hz, Rg = 1kΩ , VO = -10dB 43 50 - dB Output Noise Voltage V NOISE VCC = 4.5V, Rg = 1kΩ , BPF = 20Hz ~ 20kHz - 60 100 µVrms Output Power P OUT VCC = 3.0V, f = 1kHz, THD = 10% 20 40 - mW PS Attenuation Ratio ATT PS VCC = 1.8V, f = 100Hz, PS = GND, VIN = -10dB -- - 8 0 d B MUTE Attenuation Ratio ATT MU VCC = 1.8V, f = 100Hz, MUTE = GND, VIN = -10dB -- - 8 0 d B PS ON Input Current I PSON VCC = 1.5V, VREF ≥ 0.85V - 0.2 1.0 µA MUTE OFF Input Current I MOFF VCC = 1.5V, VREF ≥ 0.85V - 0.2 1.0 µA PS ON High Level V HPS VCC = 1.5V, VREF ≥ 0.85V 0.5 0.65 - V MUTE OFF High Level V HMU VCC = 1.5V, VREF ≥ 0.85V 0.5 0.65 - V

Application Information

  1. PS Block This block diagram describes the power save switch circuits. The drive block is controlled by PS pin, which can be derived from micro controller. It controls bias of the internal circuits of FAN7000D, so that it makes FAN7000D operate when input voltage level reaches high level. 2. Mute Block The block diagram describes the mute on switch circuits. The drive block is controlled by MUTE pin, which can be derived from micro controller. When the pin of mute turns on, it makes reference voltage of internal circuits approximately 0V , so that it keeps the device of FAN7000D off. 3. AMP Block This block diagram describes the AMP block with resistances, which control gain of FAN7000D. The gain of FAN7000D is Output voltage of FAN7000D can be 40 times as much as input voltage, so it eliminates the number of external circuits and offers headphone input. 4. Popping Noise Reduction If PS pin (Pin1 , Power save switch) connect the micro controller, the micro controller must follow the same sequence 1 in order to reduce popping noise on mute mode. PS on → Mute on → PS off → Mute operation → PS on → Mute off → Normal operation (Sequence 1) If PS connect VCC, the micro controller follow the sequence 2. Mute on → Mute Operation → Mute off → Normal operation (Sequence 2) VOUT VIN

A N D A PS_SW MUTE_SW 220uF0.1uF 0.1uF 220uF 4.7ΩΩΩΩ 4.7ΩΩΩΩ 16Ω16Ω16Ω16Ω 16Ω16Ω16Ω16Ω DC RIPPLE 1 2 22uF Rg Rg RL RL 4.7uF V10 I10

Typical Application Circuits PS INA GND INB REF Vcc OUTB GND OUTA MUT EF A N D PS_SW VDC 220uF0.1uF 0.1uF 220uF 4.7ΩΩΩΩ 4.7ΩΩΩΩ OFF ON 22uF VR 4.7uF OFF ON R-ch L-ch VR Sg1 Sg2 4.7uF4.7uF

7/16/02 0.0m 001 Stock#DSxxxxxxxx  2002 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.