TECHNICAL DATA BT8048 Melody Generator with Accompaniment FEATURES • Two Sound Sources with Envelope (CR Envelope) • Melody is inserted up to two. • According to customer’s request, the inserted melody is flexible. • 3.0V to 5.0V Operating Voltage • DC or AC Triggered Performance Start Mode (Mask Selected) • Can Drive an 8 Ohm Dynamic Loudspeaker if Provided Externally with a Transistor • Bare chip or 8-pin DIP (Plastic) Package available DESCRIPTION ORDERING INFORMATION BT8048N Plastic BT8048D SOIC TA = -40° to 85° C for all packages The BT8048 is a CMOS LSI chip, which plays a prearranged melodies. ABSOLUTE MAXIMUM RATINGS ( Ta = 25oC ) Characteristic Symbol Value Unit Power Supply Voltage VDD - 0.3 to + 7.0 V Input Terminal Voltage V10 - 0.2 to VDD + 0.2 Operating Temperature -40 to + 85 (VSS = 1.5V) Tstg - 65 to + 150 o Tsol o Ta Storage Temperature Soldering Temperature and Time V o C C 260 C, 10s (at lead) ELECTRICAL CHARACTERISTICS (VDD = 5V, Ta = 25oC; unless otherwise specified) Characteristic Symbol Min Typ Max Unit VDD 3.0 5.0 5.5 V “1” VIH VDD - 0.3 - VDD V “0” VIL VSS - VSS + 0.3 Operating Voltage Input Voltage Test Condition MT Power Supply Time 150 Response Time ms 600 ms MO OUTPUT PIN EQUIVALENT CIRCUIT 130k Main Melody 150k MO Pin Accompaniment Inside InsideofofBT8048 BT8032 1 BT8048 BLOCK DIAGRAM OSC1 ACCOMPANMENT GENERATOR OSCILLATOR OSC2 ENVELOPE MIXER ENV1 RHYTHM ROM ENV2 TEMPO ROM ENVELOPE MIXER MELODY ROM MO RHYTHM GENERATOR B/ E MELODY ROM SEL1 SEL2 MT ADDRESS COUNTER CONTROL P1 DRIVER CONTROL ROM OUT1 OUT2 TONE GENERATOR PIN DESCRIPTION Pin. No. Pin Name Pull-Down Resistor Functions 1 OSC1 - A resistor is connected between both terminals to from a ring 2 OSC2 - oscillator, or external reference signals are applied to OSC1. 3 SEL1 Provided 4 VSS - For direct selection: Selects Melody 2 and Controls Start and Stop of it’s Performance. Power Supply Terminal (0V). 5 ENV1 - Connects Resistor and Capacitor to add Envelope to Main Melody. 6 ENV2 - Connects Resistor and Capacitor to add Envelope to Accompaniment. 7 MO - Output Terminal or Acoustic Signals that have not been Amplified. 8 VDD - 3.0V to 5.0V Operating Voltage For binary selection: this Terminal in Conjunction with SEL1, selects a Melody. 2 BT8048 APPLICATION CIRCUIT (basic external connection) LINE OUTC3 C2 R2 C1 R1 VR2 BT8032 BT8048 VR1 • CR Oscillation, DC Input RECOMMENDED CONDITIONS FOR EXTERNAL DEVICES Symbol Ratings Unit Symbol Ratings Unit VR1 1-2 MΩ C1 4.7 µF VR2 50 kΩ C2 4.7 µF R1 100 kΩ C3 0.1 µF R2 100 kΩ - - - MELODY SELECT TABLE Switch Melody Gong Bong Up Down SEL1 SEL2 OFF ON OFF ON OFF OFF ON ON 3 BT8048 N SUFFIX PLASTIC DIP (MS – 001BA) A Dimension, mm 5 8 B 1 4 MIN MAX A 8.51 10.16 B 6.1 7.11 5.33 C L F Symbol C D 0.36 0.56 F 1.14 1.78 -T- SEATING PLANE N G M K 0.25 (0.010) M J H D T NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. G 2.54 H 7.62 J 0° 10° K 2.92 3.81 L 7.62 8.26 M 0.2 0.36 N 0.38 D SUFFIX SOIC (MS - 012AA) Dimension, mm A 8 5 B H 1 G P 4 D K MIN MAX A 4.8 5 B 3.8 4 C 1.35 1.75 D 0.33 0.51 F 0.4 1.27 R x 45 C -T- Symbol SEATING PLANE J F 0.25 (0.010) M T C M NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B ‑ 0.25 mm (0.010) per side. M G 1.27 H 5.72 J 0° 8° K 0.1 0.25 M 0.19 0.25 P 5.8 6.2 R 0.25 0.5 4